Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-5735

CVE-2020-5735HIGH

n/a Amcrest — Amcrest Cameras and Network Video Recorder (NVR)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   L   N  U  H  H  H    8.8   .3622   98.5   YES

AFFECTED
  Product  Versions                                                                                                                                                                         Fixed
  Amcrest  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 –  —

TIMELINE
  Jan 6   Reserved by tenable
  Apr 8   Published (CNA: tenable)
  Nov 3   Added to CISA KEV, remediation due 2022-05-03

CWE-121 · CNA: tenable · CVSS v3.1 · 3 references · KEV due May 3, 2022

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
January 6, 2020	Reserved	Reserved by tenable
April 8, 2020	Published	Published (CNA: tenable)
November 3, 2021	KEV ADDED	Added to CISA KEV, remediation due 2022-05-03

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	Amcrest	—	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	—

Weaknesses

CWE-121

References (3)

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

Authoritative record: CVE-2020-5735 at cve.org

Weaknesses: CWE-121

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-5735 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.