CVE-2020-5735 on CISA KEV

Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly execute arbitrary code.

01What CISA says about this vulnerability

Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly execute arbitrary code.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.tenable.com — https://www.tenable.com/security/research/tra-2020-20
• packetstormsecurity.com — http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-De…

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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