Buffer overflow in ZyXEL Communications Corp. products - CVE-2022-26414

Vulnerability identifier: #VU62548

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-26414

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in some internal functions. A local user can trigger memory corruption and cause a denial of service condition on the target system.

PX7501-B0
EX5401-B0
DX5401-B0
EX3510-B0
XMG8825-B50A
XMG3927-B50A
VMG8825-B60A
VMG3927-B50A
VMG3927-B60A
VMG8825-B50A
VMG8825-B50B
VMG8825-B60B
VMG1312-T20B
EP240P
PMG5617-T20B2
PM7300-T0
VMG8623-T50B
VMG3625-T50B
EMG5723-T50K
VMG3927-T50K
VMG8825-T50K
VMG3312-T20A
VMG3927-B50B
VMG4927-B50A
EMG6726-B10A
EMG3525-T50B
EMG5523-T50B
AX7501-B0
EX5501-B0
PMG5617GA
PMG5622GA
PMG5317-T20B

Install updates from vendor's website.

PX7501-B0 - update to V5.17(ABPC.1)C0
AX7501-B0 - update to V5.17(ABPC.1)C0
EX5401-B0 - update to V5.17(ABYO.1)C0
DX5401-B0 - update to V5.17(ABYO.1)C0
EX5501-B0 - update to V5.17(ABRY.2)C0
EX3510-B0 - update to V5.17(ABUP.4)C1
XMG8825-B50A - update to V5.17(ABMT.6)C0
XMG3927-B50A - update to V5.17(ABMT.6)C0
VMG8825-B60A - update to V5.17(ABMT.6)C0
VMG3927-B50A - update to V5.17(ABMT.6)C0
VMG3927-B60A - update to V5.17(ABMT.6)C0
VMG8825-B50A - update to V5.17(ABMT.6)C0
VMG8825-B50B - update to V5.17(ABNY.7)C0
VMG8825-B60B - update to V5.17(ABNY.7)C0
VMG1312-T20B - update to V5.30(ABSB.5)C0
EP240P - update to V5.40(ABVH.0)C0
PMG5617GA - update to V5.40(ABNA.2)C0
PMG5622GA - update to V5.40(ABNB.2)C0
PMG5317-T20B - update to V5.40(ABKI.4)C0
PMG5617-T20B2 - update to V5.41(ACBB.1)C0
PM7300-T0 - update to V5.42(ACBC.1)C0
VMG8623-T50B - update to V5.50(ABPM.6)C0
VMG3625-T50B - update to V5.50(ABPM.6)C0
EMG5723-T50K - update to V5.50(ABOM.7)C0
VMG3927-T50K - update to V5.50(ABOM.7)C0
VMG8825-T50K - update to V5.50(ABOM.7)C0
VMG3927-B50B - update to V5.13(ABLY.7)C0
VMG4927-B50A - update to V5.13(ABLY.7)C0
EMG6726-B10A - update to V5.13(ABNP.7)C0
EMG3525-T50B - addressed in versions V5.50(ABSL.0)B12, V5.50(ABPM.6)C0
EMG5523-T50B - addressed in versions V5.50(ABSL.0)B12, V5.50(ABPM.6)C0

• https://www.zyxel.com/support/OS-command-injection-and-buffer-overflow-vulnerabilities-of-CPE-and-ONTs.shtml

• Multiple vulnerabilities in Zyxel devices
• Multiple vulnerabilities in Zyxel devices
• Multiple vulnerabilities in Zyxel VMG3312-T20A