SB2025011445 - Multiple vulnerabilities in Microsoft Windows Telephony Service
Published: January 14, 2025 Updated: March 10, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 28 secuirty vulnerabilities.
1) Heap-based buffer overflow (CVE-ID: CVE-2025-21246)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Integer overflow (CVE-ID: CVE-2025-21244)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Heap-based buffer overflow (CVE-ID: CVE-2025-21266)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Heap-based buffer overflow (CVE-ID: CVE-2025-21236)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Heap-based buffer overflow (CVE-ID: CVE-2025-21245)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Heap-based buffer overflow (CVE-ID: CVE-2025-21248)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
7) Heap-based buffer overflow (CVE-ID: CVE-2025-21238)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
8) Heap-based buffer overflow (CVE-ID: CVE-2025-21286)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
9) Heap-based buffer overflow (CVE-ID: CVE-2025-21233)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
10) Heap-based buffer overflow (CVE-ID: CVE-2025-21411)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
11) Heap-based buffer overflow (CVE-ID: CVE-2025-21240)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
12) Heap-based buffer overflow (CVE-ID: CVE-2025-21223)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
13) Heap-based buffer overflow (CVE-ID: CVE-2025-21305)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
14) Heap-based buffer overflow (CVE-ID: CVE-2025-21241)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
15) Heap-based buffer overflow (CVE-ID: CVE-2025-21282)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
16) Heap-based buffer overflow (CVE-ID: CVE-2025-21250)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
17) Heap-based buffer overflow (CVE-ID: CVE-2025-21302)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
18) Heap-based buffer overflow (CVE-ID: CVE-2025-21237)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
19) Heap-based buffer overflow (CVE-ID: CVE-2025-21273)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
20) Heap-based buffer overflow (CVE-ID: CVE-2025-21252)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
21) Heap-based buffer overflow (CVE-ID: CVE-2025-21417)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
22) Heap-based buffer overflow (CVE-ID: CVE-2025-21303)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
23) Integer overflow (CVE-ID: CVE-2025-21243)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
24) Heap-based buffer overflow (CVE-ID: CVE-2025-21306)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
25) Heap-based buffer overflow (CVE-ID: CVE-2025-21339)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can trick a victim to connect to a malicious server, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
26) Heap-based buffer overflow (CVE-ID: CVE-2025-21239)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
27) Heap-based buffer overflow (CVE-ID: CVE-2025-21409)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
28) Heap-based buffer overflow (CVE-ID: CVE-2025-21413)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Windows Telephony Service. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21246
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21244
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21266
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21236
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21245
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21248
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21238
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21286
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21233
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21411
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21240
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21223
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21305
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21241
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21282
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21250
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21302
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21237
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21273
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21252
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21417
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21303
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21243
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21306
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21339
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21239
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21409
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21413