CVE-2021-33514
8.8 · HIGHOverview
CVE-2021-33514 is a high-severity vulnerability affecting netgear gc108p_firmware. It was published on May 21, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker via the vulnerable /sqfs/lib/libsal.so.0.0 library used by a CGI application, as demonstrated by setup.cgi?token=';$HTTP_USER_AGENT;' with an OS command in the User-Agent field. This affects GC108P before 1.0.7.3, GC108PP before 1.0.7.3, GS108Tv3 before 7.0.6.3, GS110TPPv1 before 7.0.6.3, GS110TPv3 before 7.0.6.3, GS110TUPv1 before 1.0.4.3, GS710TUPv1 before 1.0.4.3, GS716TP before 1.0.2.3, GS716TPP before 1.0.2.3, GS724TPPv1 before 2.0.4.3, GS724TPv2 before 2.0.4.3, GS728TPPv2 before 6.0.6.3, GS728TPv2 before 6.0.6.3, GS752TPPv1 before 6.0.6.3, GS752TPv2 before 6.0.6.3, MS510TXM before 1.0.2.3, and MS510TXUP before 1.0.2.3.
Remediation
Check the references section for vendor advisories and patches from netgear. Update gc108p_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| netgear | gc108p_firmware | >= 0, < 1.0.7.3 | Affected |
| netgear | gc108pp_firmware | >= 0, < 1.0.7.3 | Affected |
| netgear | gs108t_firmware | >= 0, < 7.0.6.3 | Affected |
| netgear | gs110tpp_firmware | >= 0, < 7.0.6.3 | Affected |
| netgear | gs110tp_firmware | >= 0, < 7.0.6.3 | Affected |
| netgear | gs110tup_firmware | >= 0, < 1.0.4.3 | Affected |
| netgear | gs710tup_firmware | >= 0, < 1.0.4.3 | Affected |
| netgear | gs716tp_firmware | >= 0, < 1.0.2.3 | Affected |
| netgear | gs716tpp_firmware | >= 0, < 1.0.2.3 | Affected |
| netgear | gs724tpp_firmware | >= 0, < 2.0.4.3 | Affected |
References
Frequently Asked Questions
What is CVE-2021-33514?
CVE-2021-33514 is a high-severity vulnerability affecting netgear gc108p_firmware. It was published on May 21, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-33514?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-33514?
Check the references section for vendor advisories and patches from netgear. Update gc108p_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-33514?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-33514 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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