What’s Vulnerable › Vulnerabilities

CVE-2021-32941: Annke Network Video Recorder - Stack-based Buffer Overflow

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 14.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-05-23 · updated 2026-06-17
• Weakness: CWE-121

Description

Annke N48PBB (Network Video Recorder) products of version 3.4.106 build 200422 and prior are vulnerable to a stack-based buffer overflow, which allows an unauthorized remote attacker to execute arbitrary code with the same privileges as the server user (root).

Affected products

• Annke N48PBB (NVR): before 3.4.106; 3.4.106, 3.4.106-build_200422 — fixed in 3.4.106

How to fix

Upgrade to a fixed version: Annke N48PBB (NVR) 3.4.106. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-238-02
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-238-02

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