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Vulnerabilities

Vulnerability · CVE-2020-5735

Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability

Published Apr 8, 2020 · catalog updated Jun 16, 2026 · Amcrest Cameras and Network Video Recorder (NVR)

Patch now

CVE-2020-5735 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Amcrest Cameras and Network Video Recorder (NVR) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
36.22%
Remediation
Remediation guidance
Affected products
cpe amcrest/1080-lite 8ch firmware · cpe amcrest/amdv10814-h5 firmware · cpe amcrest/ip2m-841 firmware · cpe amcrest/ip2m-841-v3 firmware · cpe amcrest/ip2m-853ew firmware · cpe amcrest/ip2m-858w firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe amcrest/1080-lite 8ch firmwareversion unspecified
  • cpe amcrest/amdv10814-h5 firmwareversion unspecified
  • cpe amcrest/ip2m-841 firmwareversion unspecified
  • cpe amcrest/ip2m-841-v3 firmwareversion unspecified
  • cpe amcrest/ip2m-853ew firmwareversion unspecified
  • cpe amcrest/ip2m-858w firmwareversion unspecified
  • cpe amcrest/ip2m-866ew firmwareversion unspecified
  • cpe amcrest/ip2m-866w firmwareversion unspecified
  • cpe amcrest/ip4m-1053ew firmwareversion unspecified
  • cpe amcrest/ip8m-2454ew firmwareversion unspecified
  • cpe amcrest/ip8m-2493eb firmwareversion unspecified
  • cpe amcrest/ipm-721 firmwareversion unspecified
  • vendor Amcrest Cameras and Network Video Recorder (NVR)version unspecified

How to fix CVE-2020-5735

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-5735 is in the CISA known-exploited catalog, due May 3, 2022. Confirm Amcrest Cameras and Network Video Recorder (NVR) against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply updates per vendor instructions.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow; CWE-787: Out-of-bounds Write. EPSS 36.22%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 8, 2020 · Catalog

    Detected

    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.

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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.

Sources

  • CISA KEVConfirmed exploitationCVE-2020-5735

    Amcrest cameras and NVR contain a stack-based buffer overflow vulnerability through port 37777 that allows an unauthenticated, remote attacker to crash the device and possibly execute code.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-5735

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-5735

    30-day exploitation probability 36.2%

    first.org
  • Exploit DatabasePublic exploit reference48304

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2020-5735

    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.

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2020-5735

    Amcrest cameras and NVR contain a stack-based buffer overflow vulnerability through port 37777 that allows an unauthenticated, remote attacker to crash the device and possibly execute code.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.