#VU112519 Untrusted Pointer Dereference in Windows and Windows Server - CVE-2025-49661

Cybersecurity Help s.r.o.

Published: 2025-07-08

Vulnerability identifier: #VU112519

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-49661

CWE-ID: CWE-822

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Windows
Operating systems & Components / Operating system
Windows Server
Operating systems & Components / Operating system

Vendor: Microsoft

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to untrusted pointer dereference in Windows Ancillary Function Driver for WinSock. A local user can gain elevated privileges on the target system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920, 10 21H2 10.0.19043.4529, 10 21H2 10.0.19044.1147, 10 21H2 10.0.19044.1149, 10 21H2 10.0.19044.1151, 10 21H2 10.0.19044.1165, 10 21H2 10.0.19044.1200, 10 21H2 10.0.19044.1202 - 11 22H2 10.0.22621.2500, 10 21H2 10.0.19044.1237 - 11 23H2 10.0.22631.4751, 10 21H2 10.0.19044.1263, 10 21H2 10.0.19044.1266, 10 21H2 10.0.19044.1288, 10 21H2 10.0.19044.1319, 10 21H2 10.0.19044.1320, 10 21H2 10.0.19044.1348, 10 21H2 10.0.19044.1379, 10 21H2 10.0.19044.1381, 10 21H2 10.0.19044.1387, 10 21H2 10.0.19044.1415, 10 21H2 10.0.19044.1466, 10 21H2 10.0.19044.1469, 10 21H2 10.0.19044.1499, 10 21H2 10.0.19044.1503, 10 21H2 10.0.19044.1526, 10 21H2 10.0.19044.1566, 10 21H2 10.0.19044.1586, 10 21H2 10.0.19044.1618, 10 21H2 10.0.19044.1620, 10 21H2 10.0.19044.1645, 10 21H2 10.0.19044.1679, 10 21H2 10.0.19044.1682, 10 21H2 10.0.19044.1706, 10 21H2 10.0.19044.1708, 10 21H2 10.0.19044.1737, 10 21H2 10.0.19044.1739, 10 21H2 10.0.19044.1741, 10 21H2 10.0.19044.1766, 10 21H2 10.0.19044.1767, 10 21H2 10.0.19044.1806, 10 21H2 10.0.19044.1826, 10 21H2 10.0.19044.1862, 10 21H2 10.0.19044.1865, 10 21H2 10.0.19044.1889, 10 21H2 10.0.19044.1947, 10 21H2 10.0.19044.1949, 10 21H2 10.0.19044.2006, 10 21H2 10.0.19044.2075, 10 21H2 10.0.19044.2130, 10 21H2 10.0.19044.2132, 10 21H2 10.0.19044.2192, 10 21H2 10.0.19044.2193, 10 21H2 10.0.19044.2194, 10 21H2 10.0.19044.2251, 10 21H2 10.0.19044.2311, 10 21H2 10.0.19044.2364, 10 21H2 10.0.19044.2486, 10 21H2 10.0.19044.2545, 10 21H2 10.0.19044.2546, 10 21H2 10.0.19044.2604, 10 21H2 10.0.19044.2673, 10 21H2 10.0.19044.2728, 10 21H2 10.0.19044.2788, 10 21H2 10.0.19044.2846, 10 21H2 10.0.19044.2965, 10 21H2 10.0.19044.3086, 10 21H2 10.0.19044.3208, 10 21H2 10.0.19044.3324, 10 21H2 10.0.19044.3448, 10 21H2 10.0.19044.3570, 10 21H2 10.0.19044.3693, 10 22H2 10.0.19041.4894, 10 22H2 10.0.19045.1865, 10 22H2 10.0.19045.1889, 10 22H2 10.0.19045.1949, 10 22H2 10.0.19045.2006, 10 22H2 10.0.19045.2075, 10 22H2 10.0.19045.2130, 10 22H2 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10.0.17763.678, 10 1809 10.0.17763.720, 10 1809 10.0.17763.737, 10 1809 10.0.17763.740, 10 1809 10.0.17763.774, 10 1809 10.0.17763.775, 10 1809 10.0.17763.805, 10 1809 10.0.17763.832, 10 1809 10.0.17763.864, 10 1809 10.0.17763.914, 10 1809 10.0.17763.973, 10 1809 10.0.17763.1012, 10 1809 10.0.17763.1039, 10 1809 10.0.17763.1075, 10 1809 10.0.17763.1098, 10 1809 10.0.17763.1131, 10 1809 10.0.17763.1132, 10 1809 10.0.17763.1158, 10 1809 10.0.17763.1192, 10 1809 10.0.17763.1217, 10 1809 10.0.17763.1282, 10 1809 10.0.17763.1294, 10 1809 10.0.17763.1339, 10 1809 10.0.17763.1369, 10 1809 10.0.17763.1397, 10 1809 10.0.17763.1432, 10 1809 10.0.17763.1457, 10 1809 10.0.17763.1490, 10 1809 10.0.17763.1518, 10 1809 10.0.17763.1554, 10 1809 10.0.17763.1577, 10 1809 10.0.17763.1579, 10 1809 10.0.17763.1613, 10 1809 10.0.17763.1637, 10 1809 10.0.17763.1697, 10 1809 10.0.17763.1728, 10 1809 10.0.17763.1757, 10 1809 10.0.17763.1790, 10 1809 10.0.17763.1817, 10 1809 10.0.17763.1821, 10 1809 10.0.17763.1823, 10 1809 10.0.17763.1852, 10 1809 10.0.17763.1879, 10 1809 10.0.17763.1911, 10 1809 10.0.17763.1935, 10 1809 10.0.17763.1971, 10 1809 10.0.17763.1999, 10 1809 10.0.17763.2028, 10 1809 10.0.17763.2029, 10 1809 10.0.17763.2061, 10 1809 10.0.17763.2090, 10 1809 10.0.17763.2091, 10 1809 10.0.17763.2114, 10 1809 10.0.17763.2145, 10 1809 10.0.17763.2183, 10 1809 10.0.17763.2213, 10 1809 10.0.17763.2237, 10 1809 10.0.17763.2268, 10 1809 10.0.17763.2300, 10 1809 10.0.17763.2305, 10 1809 10.0.17763.2330, 10 1809 10.0.17763.2366, 10 1809 10.0.17763.2369, 10 1809 10.0.17763.2452, 10 1809 10.0.17763.2458, 10 1809 10.0.17763.2510, 10 1809 10.0.17763.2565, 10 1809 10.0.17763.2628, 10 1809 10.0.17763.2686, 10 1809 10.0.17763.2746, 10 1809 10.0.17763.2803, 10 1809 10.0.17763.2867, 10 1809 10.0.17763.2928, 10 1809 10.0.17763.2931, 10 1809 10.0.17763.2989, 10 1809 10.0.17763.3046, 10 1809 10.0.17763.3113, 10 1809 10.0.17763.3165, 10 1809 10.0.17763.3232, 10 1809 10.0.17763.3287, 10 1809 10.0.17763.3346, 10 1809 10.0.17763.3406, 10 1809 10.0.17763.3469, 10 1809 10.0.17763.3532, 10 1809 10.0.17763.3534, 10 1809 10.0.17763.3650, 10 1809 10.0.17763.3653, 10 1809 10.0.17763.3770, 10 1809 10.0.17763.3772, 10 1809 10.0.17763.3887, 10 1809 10.0.17763.4010, 10 1809 10.0.17763.4131, 10 1809 10.0.17763.4252, 10 1809 10.0.17763.4377, 10 1809 10.0.17763.4499, 10 1809 10.0.17763.4645, 10 1809 10.0.17763.4737, 10 1809 10.0.17763.4851, 10 1809 10.0.17763.4974, 10 1809 10.0.17763.5122, 10 1809 10.0.17763.5206, 10 1809 10.0.17763.5329, 10 1809 10.0.17763.5458, 10 1809 10.0.17763.5576, 10 1809 10.0.17763.5579, 10 1809 10.0.17763.5696, 10 1809 10.0.17763.5820, 10 1809 10.0.17763.5936, 10 1809 10.0.17763.6054, 10 1809 10.0.17763.6189, 10 1809 10.0.17763.6293, 10 1809 10.0.17763.6414, 10 1809 10.0.17763.6532, 10 1809 10.0.17763.6659, 10 1809 10.0.17763.6775, 10 1809 10.0.17763.6893, 10 1809 10.0.17763.7009, 10 1809 10.0.17763.7136, 10 1809 10.0.17763.7137, 10 1809 10.0.17763.7314, 10 1809 10.0.17763.7434, 11 22H2 10.0.22449.1000, 11 22H2 10.0.22454.1000, 11 22H2 10.0.22458.1000, 11 22H2 10.0.22463.1000, 11 22H2 10.0.22468.1000, 11 22H2 10.0.22471.1000, 11 22H2 10.0.22478.1000, 11 22H2 10.0.22478.1012, 11 22H2 10.0.22483.1000, 11 22H2 10.0.22483.1011, 11 22H2 10.0.22489.1000, 11 22H2 10.0.22494.1000, 11 22H2 10.0.22499.1000, 11 22H2 10.0.22499.1010, 11 22H2 10.0.22504.1000, 11 22H2 10.0.22504.1010, 11 22H2 10.0.22509.1000, 11 22H2 10.0.22509.1011, 11 22H2 10.0.22518.1000, 11 22H2 10.0.22518.1012, 11 22H2 10.0.22523.1000, 11 22H2 10.0.22526.1000, 11 22H2 10.0.22533.1001, 11 22H2 10.0.22538.1000, 11 22H2 10.0.22538.1010, 11 22H2 10.0.22543.1000, 11 22H2 10.0.22557.1, 11 22H2 10.0.22563.1, 11 22H2 10.0.22567.1, 11 22H2 10.0.22567.100, 11 22H2 10.0.22567.200, 11 22H2 10.0.22572.1, 11 22H2 10.0.22572.100, 11 22H2 10.0.22572.201, 11 22H2 10.0.22579.1, 11 22H2 10.0.22579.100, 11 22H2 10.0.22581.1, 11 22H2 10.0.22581.100, 11 22H2 10.0.22581.200, 11 22H2 10.0.22593.1, 11 22H2 10.0.22598.1, 11 22H2 10.0.22598.100, 11 22H2 10.0.22598.200, 11 22H2 10.0.22610.1, 11 22H2 10.0.22616.1, 11 22H2 10.0.22616.100, 11 23H2 10.0.22631.4890, 11 23H2 10.0.22631.5039, 11 23H2 10.0.22631.5189, 11 23H2 10.0.22631.5191, 11 23H2 10.0.22631.5335, 11 23H2 10.0.22631.5465, 11 23H2 10.0.22631.5472, 11 24H2 10.0.26052.1000, 11 24H2 10.0.26052.1100, 11 24H2 10.0.26058.1000, 11 24H2 10.0.26058.1100, 11 24H2 10.0.26058.1300, 11 24H2 10.0.26058.1400, 11 24H2 10.0.26063.1, 11 24H2 10.0.26080.1, 11 24H2 10.0.26080.1100, 11 24H2 10.0.26080.1201, 11 24H2 10.0.26080.1300, 11 24H2 10.0.26080.1400, 11 24H2 10.0.26085.1, 11 24H2 10.0.26090.1, 11 24H2 10.0.26090.112, 11 24H2 10.0.26100.1, 11 24H2 10.0.26100.268, 11 24H2 10.0.26100.560, 11 24H2 10.0.26100.712, 11 24H2 10.0.26100.863, 11 24H2 10.0.26100.994, 11 24H2 10.0.26100.1000, 11 24H2 10.0.26100.1150, 11 24H2 10.0.26100.1297, 11 24H2 10.0.26100.1301, 11 24H2 10.0.26100.1457, 11 24H2 10.0.26100.1586, 11 24H2 10.0.26100.1591, 11 24H2 10.0.26100.1742, 11 24H2 10.0.26100.1876, 11 24H2 10.0.26100.1882, 11 24H2 10.0.26100.2033, 11 24H2 10.0.26100.2152, 11 24H2 10.0.26100.2161, 11 24H2 10.0.26100.2240, 11 24H2 10.0.26100.2314, 11 24H2 10.0.26100.2528, 11 24H2 10.0.26100.2605, 11 24H2 10.0.26100.2894, 11 24H2 10.0.26100.3107, 11 24H2 10.0.26100.3194, 11 24H2 10.0.26100.3403, 11 24H2 10.0.26100.3476, 11 24H2 10.0.26100.3775, 11 24H2 10.0.26100.3981, 11 24H2 10.0.26100.4061, 11 24H2 10.0.26100.4264, 11 24H2 10.0.26100.4270, 11 24H2 10.0.26100.4349

Windows Server: 2008 6.0.6003.22567, 2008 6.0.6003.22618, 2008 6.0.6003.22668, 2008 6.0.6003.22720, 2008 6.0.6003.22769, 2008 6.0.6003.22825, 2008 6.0.6003.22870, 2008 6.0.6003.22918, 2008 6.0.6003.22966, 2008 6.0.6003.23016, 2008 6.0.6003.23070, 2008 6.0.6003.23117, 2008 6.0.6003.23168, 2008 6.0.6003.23220, 2008 6.0.6003.23279, 2008 6.0.6003.23317, 2008 6.0.6003.23351, 2012 6.2.9200.24768, 2012 6.2.9200.24821, 2012 6.2.9200.24868, 2012 6.2.9200.24919, 2012 6.2.9200.24975, 2012 6.2.9200.25031, 2012 6.2.9200.25073, 2012 6.2.9200.25118, 2012 6.2.9200.25165, 2012 6.2.9200.25222, 2012 6.2.9200.25273, 2012 6.2.9200.25317, 2012 6.2.9200.25368, 2012 6.2.9200.25423, 2012 6.2.9200.25475, 2012 6.2.9200.25522, 2016 10.0.14393.10, 2016 10.0.14393.51, 2016 10.0.14393.82, 2016 10.0.14393.105, 2016 10.0.14393.187, 2016 10.0.14393.222, 2016 10.0.14393.321, 2016 10.0.14393.351, 2016 10.0.14393.447, 2016 10.0.14393.479, 2016 10.0.14393.576, 2016 10.0.14393.693, 2016 10.0.14393.953, 2016 10.0.14393.969, 2016 10.0.14393.1066, 2016 10.0.14393.1198, 2016 10.0.14393.1358, 2016 10.0.14393.1378, 2016 10.0.14393.1480, 2016 10.0.14393.1532, 2016 10.0.14393.1537, 2016 10.0.14393.1593, 2016 10.0.14393.1613, 2016 10.0.14393.1670, 2016 10.0.14393.1715, 2016 10.0.14393.1737, 2016 10.0.14393.1770, 2016 10.0.14393.1794, 2016 10.0.14393.1797, 2016 10.0.14393.1884, 2016 10.0.14393.1914, 2016 10.0.14393.1944, 2016 10.0.14393.2007, 2016 10.0.14393.2035, 2016 10.0.14393.2068, 2016 10.0.14393.2097, 2016 10.0.14393.2125, 2016 10.0.14393.2155, 2016 10.0.14393.2156, 2016 10.0.14393.2189, 2016 10.0.14393.2214, 2016 10.0.14393.2248, 2016 10.0.14393.2273, 2016 10.0.14393.2312, 2016 10.0.14393.2339, 2016 10.0.14393.2363, 2016 10.0.14393.2368, 2016 10.0.14393.2395, 2016 10.0.14393.2396, 2016 10.0.14393.2430, 2016 10.0.14393.2457, 2016 10.0.14393.2485, 2016 10.0.14393.2515, 2016 10.0.14393.2551, 2016 10.0.14393.2580, 2016 10.0.14393.2608, 2016 10.0.14393.2639, 2016 10.0.14393.2641, 2016 10.0.14393.2665, 2016 10.0.14393.2670, 2016 10.0.14393.2724, 2016 10.0.14393.2759, 2016 10.0.14393.2791, 2016 10.0.14393.2828, 2016 10.0.14393.2848, 2016 10.0.14393.2879, 2016 10.0.14393.2906, 2016 10.0.14393.2908, 2016 10.0.14393.2941, 2016 10.0.14393.2969, 2016 10.0.14393.2972, 2016 10.0.14393.2999, 2016 10.0.14393.3025, 2016 10.0.14393.3053, 2016 10.0.14393.3056, 2016 10.0.14393.3085, 2016 10.0.14393.3115, 2016 10.0.14393.3144, 2016 10.0.14393.3181, 2016 10.0.14393.3204, 2016 10.0.14393.3206, 2016 10.0.14393.3242, 2016 10.0.14393.3243, 2016 10.0.14393.3274, 2016 10.0.14393.3300, 2016 10.0.14393.3326, 2016 10.0.14393.3384, 2016 10.0.14393.3443, 2016 10.0.14393.3474, 2016 10.0.14393.3504, 2016 10.0.14393.3542, 2016 10.0.14393.3564, 2016 10.0.14393.3595, 2016 10.0.14393.3630, 2016 10.0.14393.3659, 2016 10.0.14393.3686, 2016 10.0.14393.3750, 2016 10.0.14393.3755, 2016 10.0.14393.3808, 2016 10.0.14393.3866, 2016 10.0.14393.3930, 2016 10.0.14393.3986, 2016 10.0.14393.4046, 2016 10.0.14393.4048, 2016 10.0.14393.4104, 2016 10.0.14393.4169, 2016 10.0.14393.4225, 2016 10.0.14393.4283, 2016 10.0.14393.4288, 2016 10.0.14393.4350, 2016 10.0.14393.4402, 2016 10.0.14393.4467, 2016 10.0.14393.4470, 2016 10.0.14393.4530, 2016 10.0.14393.4532, 2016 10.0.14393.4583, 2016 10.0.14393.4651, 2016 10.0.14393.4704, 2016 10.0.14393.4770, 2016 10.0.14393.4771, 2016 10.0.14393.4825, 2016 10.0.14393.4827, 2016 10.0.14393.4886, 2016 10.0.14393.4889, 2016 10.0.14393.4946, 2016 10.0.14393.5006, 2016 10.0.14393.5066, 2016 10.0.14393.5125, 2016 10.0.14393.5127, 2016 10.0.14393.5192, 2016 10.0.14393.5246, 2016 10.0.14393.5291, 2016 10.0.14393.5356, 2016 10.0.14393.5427, 2016 10.0.14393.5429, 2016 10.0.14393.5501, 2016 10.0.14393.5502, 2016 10.0.14393.5582, 2016 10.0.14393.5648, 2016 10.0.14393.5717, 2016 10.0.14393.5786, 2016 10.0.14393.5850, 2016 10.0.14393.5921, 2016 10.0.14393.5989, 2016 10.0.14393.5996, 2016 10.0.14393.6085, 2016 10.0.14393.6167, 2016 10.0.14393.6252, 2016 10.0.14393.6351, 2016 10.0.14393.6452, 2016 10.0.14393.6529, 2016 10.0.14393.6614, 2016 10.0.14393.6709, 2016 10.0.14393.6796, 2016 10.0.14393.6800, 2016 10.0.14393.6897, 2016 10.0.14393.6981, 2016 10.0.14393.7070, 2016 10.0.14393.7159, 2016 10.0.14393.7259, 2016 10.0.14393.7336, 2016 10.0.14393.7428, 2016 10.0.14393.7515, 2016 10.0.14393.7606, 2016 10.0.14393.7699, 2016 10.0.14393.7785, 2016 10.0.14393.7876, 2016 10.0.14393.7969, 2016 10.0.14393.7970, 2016 10.0.14393.8066, 2016 10.0.14393.8148, 2019 10.0.10240.21034, 2019 10.0.17763.1, 2019 10.0.17763.55, 2019 10.0.17763.107, 2019 10.0.17763.134, 2019 10.0.17763.168, 2019 10.0.17763.194, 2019 10.0.17763.195, 2019 10.0.17763.253, 2019 10.0.17763.292, 2019 10.0.17763.316, 2019 10.0.17763.348, 2019 10.0.17763.379, 2019 10.0.17763.404, 2019 10.0.17763.437, 2019 10.0.17763.439, 2019 10.0.17763.475, 2019 10.0.17763.503, 2019 10.0.17763.504, 2019 10.0.17763.529, 2019 10.0.17763.557, 2019 10.0.17763.592, 2019 10.0.17763.593, 2019 10.0.17763.615, 2019 10.0.17763.652, 2019 10.0.17763.678, 2019 10.0.17763.720, 2019 10.0.17763.737, 2019 10.0.17763.740, 2019 10.0.17763.774, 2019 10.0.17763.775, 2019 10.0.17763.805, 2019 10.0.17763.832, 2019 10.0.17763.864, 2019 10.0.17763.914, 2019 10.0.17763.973, 2019 10.0.17763.1012, 2019 10.0.17763.1039, 2019 10.0.17763.1075, 2019 10.0.17763.1098, 2019 10.0.17763.1131, 2019 10.0.17763.1132, 2019 10.0.17763.1158, 2019 10.0.17763.1192, 2019 10.0.17763.1217, 2019 10.0.17763.1282, 2019 10.0.17763.1294, 2019 10.0.17763.1339, 2019 10.0.17763.1369, 2019 10.0.17763.1397, 2019 10.0.17763.1432, 2019 10.0.17763.1457, 2019 10.0.17763.1490, 2019 10.0.17763.1518, 2019 10.0.17763.1554, 2019 10.0.17763.1577, 2019 10.0.17763.1579, 2019 10.0.17763.1613, 2019 10.0.17763.1637, 2019 10.0.17763.1697, 2019 10.0.17763.1728, 2019 10.0.17763.1757, 2019 10.0.17763.1790, 2019 10.0.17763.1817, 2019 10.0.17763.1821, 2019 10.0.17763.1823, 2019 10.0.17763.1852, 2019 10.0.17763.1879, 2019 10.0.17763.1911, 2019 10.0.17763.1935, 2019 10.0.17763.1971, 2019 10.0.17763.1999, 2019 10.0.17763.2028, 2019 10.0.17763.2029, 2019 10.0.17763.2061, 2019 10.0.17763.2090, 2019 10.0.17763.2091, 2019 10.0.17763.2114, 2019 10.0.17763.2145, 2019 10.0.17763.2183, 2019 10.0.17763.2213, 2019 10.0.17763.2237, 2019 10.0.17763.2268, 2019 10.0.17763.2300, 2019 10.0.17763.2305, 2019 10.0.17763.2330, 2019 10.0.17763.2366, 2019 10.0.17763.2369, 2019 10.0.17763.2452, 2019 10.0.17763.2458, 2019 10.0.17763.2510, 2019 10.0.17763.2565, 2019 10.0.17763.2628, 2019 10.0.17763.2686, 2019 10.0.17763.2746, 2019 10.0.17763.2803, 2019 10.0.17763.2867, 2019 10.0.17763.2928, 2019 10.0.17763.2931, 2019 10.0.17763.2989, 2019 10.0.17763.3046, 2019 10.0.17763.3113, 2019 10.0.17763.3165, 2019 10.0.17763.3232, 2019 10.0.17763.3287, 2019 10.0.17763.3346, 2019 10.0.17763.3406, 2019 10.0.17763.3469, 2019 10.0.17763.3532, 2019 10.0.17763.3534, 2019 10.0.17763.3650, 2019 10.0.17763.3653, 2019 10.0.17763.3770, 2019 10.0.17763.3772, 2019 10.0.17763.3887, 2019 10.0.17763.4010, 2019 10.0.17763.4131, 2019 10.0.17763.4252, 2019 10.0.17763.4377, 2019 10.0.17763.4499, 2019 10.0.17763.4645, 2019 10.0.17763.4737, 2019 10.0.17763.4851, 2019 10.0.17763.4974, 2019 10.0.17763.5122, 2019 10.0.17763.5206, 2019 10.0.17763.5329, 2019 10.0.17763.5458, 2019 10.0.17763.5576, 2019 10.0.17763.5579, 2019 10.0.17763.5696, 2019 10.0.17763.5820, 2019 10.0.17763.5936, 2019 10.0.17763.6054, 2019 10.0.17763.6189, 2019 10.0.17763.6293, 2019 10.0.17763.6414, 2019 10.0.17763.6532, 2019 10.0.17763.6659, 2019 10.0.17763.6775, 2019 10.0.17763.6893, 2019 10.0.17763.7009, 2019 10.0.17763.7136, 2019 10.0.17763.7137, 2019 10.0.17763.7314, 2019 10.0.17763.7434, 2022 10.0.20348.202, 2022 10.0.20348.230, 2022 10.0.20348.261, 2022 10.0.20348.288, 2022 10.0.20348.320, 2022 10.0.20348.350, 2022 10.0.20348.380, 2022 10.0.20348.405, 2022 10.0.20348.407, 2022 10.0.20348.469, 2022 10.0.20348.473, 2022 10.0.20348.502, 2022 10.0.20348.524, 2022 10.0.20348.558, 2022 10.0.20348.587, 2022 10.0.20348.617, 2022 10.0.20348.643, 2022 10.0.20348.681, 2022 10.0.20348.707, 2022 10.0.20348.709, 2022 10.0.20348.740, 2022 10.0.20348.768, 2022 10.0.20348.803, 2022 10.0.20348.825, 2022 10.0.20348.859, 2022 10.0.20348.887, 2022 10.0.20348.946, 2022 10.0.20348.1006, 2022 10.0.20348.1070, 2022 10.0.20348.1129, 2022 10.0.20348.1131, 2022 10.0.20348.1194, 2022 10.0.20348.1249, 2022 10.0.20348.1251, 2022 10.0.20348.1311, 2022 10.0.20348.1366, 2022 10.0.20348.1368, 2022 10.0.20348.1487, 2022 10.0.20348.1547, 2022 10.0.20348.1607, 2022 10.0.20348.1668, 2022 10.0.20348.1726, 2022 10.0.20348.1787, 2022 10.0.20348.1850, 2022 10.0.20348.1906, 2022 10.0.20348.1970, 2022 10.0.20348.2031, 2022 10.0.20348.2113, 2022 10.0.20348.2159, 2022 10.0.20348.2227, 2022 10.0.20348.2322, 2022 10.0.20348.2333, 2022 10.0.20348.2340, 2022 10.0.20348.2342, 2022 10.0.20348.2402, 2022 10.0.20348.2458, 2022 10.0.20348.2461, 2022 10.0.20348.2522, 2022 10.0.20348.2527, 2022 10.0.20348.2582, 2022 10.0.20348.2655, 2022 10.0.20348.2695, 2022 10.0.20348.2700, 2022 10.0.20348.2762, 2022 10.0.20348.2849, 2022 10.0.20348.2908, 2022 10.0.20348.2966, 2022 10.0.20348.3091, 2022 10.0.20348.3148, 2022 10.0.20348.3207, 2022 10.0.20348.3270, 2022 10.0.20348.3328, 2022 10.0.20348.3454, 2022 10.0.20348.3630, 2022 10.0.20348.3692, 2022 10.0.20348.3740, 2022 10.0.20348.3745, 2022 10.0.20348.3800, 2022 10.0.20348.3807, 2025 10.0.26100.1742, 2025 10.0.26100.2240, 2025 10.0.26100.2314, 2025 10.0.26100.2528, 2025 10.0.26100.2605, 2025 10.0.26100.2894, 2025 10.0.26100.3107, 2025 10.0.26100.3194, 2025 10.0.26100.3403, 2025 10.0.26100.3476, 2025 10.0.26100.3775, 2025 10.0.26100.3981, 2025 10.0.26100.4061, 2025 10.0.26100.4264, 2025 10.0.26100.4270, 2025 10.0.26100.4349

External links
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49661

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability

Privilege escalation in Microsoft Windows Ancillary Function Driver for WinSock