CVE-2026-6952: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in Zyxel AX7501-B1 firmware
CVE-2026-6952 is a post-authentication OS command injection vulnerability in the LogServer field of the syslog component in Zyxel AX7501-B1 firmware. It affects firmware versions up to 5.17(ABPC.7.2)C0. An attacker with administrator privileges can exploit this to execute arbitrary OS commands on the device. The vulnerability has a high severity with a CVSS score of 7.2. No patch or official remediation information is currently available.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-6952) involves improper neutralization of special elements used in OS commands (CWE-78) within the LogServer field of the syslog component in Zyxel AX7501-B1 firmware. It requires an authenticated attacker with administrator privileges to exploit. Successful exploitation allows execution of arbitrary OS commands on the affected device, potentially compromising confidentiality, integrity, and availability. The affected firmware versions include those through 5.17(ABPC.7.2)C0. No vendor advisory or patch information is currently provided.
Potential Impact
An authenticated attacker with administrator privileges can execute arbitrary OS commands on the affected Zyxel AX7501-B1 device. This can lead to full compromise of the device, including unauthorized access, data manipulation, or denial of service. The vulnerability impacts confidentiality, integrity, and availability of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrative access to trusted users only and monitor for suspicious activity. Avoid exposing the device management interface to untrusted networks.
CVE-2026-6952: CWE-78 Improper neutralization of special elements used in an OS command ('OS command injection') in Zyxel AX7501-B1 firmware
Description
CVE-2026-6952 is a post-authentication OS command injection vulnerability in the LogServer field of the syslog component in Zyxel AX7501-B1 firmware. It affects firmware versions up to 5.17(ABPC.7.2)C0. An attacker with administrator privileges can exploit this to execute arbitrary OS commands on the device. The vulnerability has a high severity with a CVSS score of 7.2. No patch or official remediation information is currently available.
CVSS v3.1
Score 7.2high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-6952) involves improper neutralization of special elements used in OS commands (CWE-78) within the LogServer field of the syslog component in Zyxel AX7501-B1 firmware. It requires an authenticated attacker with administrator privileges to exploit. Successful exploitation allows execution of arbitrary OS commands on the affected device, potentially compromising confidentiality, integrity, and availability. The affected firmware versions include those through 5.17(ABPC.7.2)C0. No vendor advisory or patch information is currently provided.
Potential Impact
An authenticated attacker with administrator privileges can execute arbitrary OS commands on the affected Zyxel AX7501-B1 device. This can lead to full compromise of the device, including unauthorized access, data manipulation, or denial of service. The vulnerability impacts confidentiality, integrity, and availability of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrative access to trusted users only and monitor for suspicious activity. Avoid exposing the device management interface to untrusted networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Zyxel
- Date Reserved
- 2026-04-24T08:08:46.958Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5ed9092a4a8d59895d7a81
Added to database: 07/21/2026, 02:27:21 UTC
Last enriched: 07/21/2026, 02:41:39 UTC
Last updated: 07/21/2026, 10:28:06 UTC
Views: 16
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