# CVE-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.

- Page: https://www.vulneraibility.com/cve/CVE-2020-5735
- CVSS: 8.8
- Known exploited: yes, in CISA KEV since 2021-11-03; CISA due date 2022-05-03
- EPSS: 36.22% (percentile 98.5)
- Public exploit code: 1 on Exploit-DB (first 2020-04-08)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2025-02-06)
- Weakness: CWE-121
- Published: 2020-04-08

## Affected versions

- Amcrest: affected before 2.623.00AC004.0.R.200316, 2.420.AC00.18.R.20200217, 2.800.00AC000.0.R.200330, 2.800.0000000.6.R.200314.bin, 2.622.00AC000.0.R.200320.bin, and 4.000.00AC000.0.R.200218

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://www.tenable.com/security/research/tra-2020-20
- [other] http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5735

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.