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ExploitedIn CISA KEVFix available

CVE-2020-5735

Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2020-04-08
  • WeaknessCWE-121 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2020-04-08Exploit-DB entryExploit-DB
  2. 2020-04-0813:15CVE publishedNVD
  3. 2021-11-03Added to the CISA KEV catalogCISA KEV
  4. 2021-11-03Listed as exploited by GCVEGCVE
  5. 2021-11-03Exploitation first reportedCISA KEV
  6. 2025-02-0620:31SSVC exploitation set to activeCISA-ADP

Versions per branch

NVD
Amcrest 1080-lite 8ch firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published
Amcrest amdv10814-h5 firmwareversion to verify
BranchAffectedFixed in
—all versionsno fix published
Amcrest ip2m-841 firmwareversion to verify
BranchAffectedFixed in
2.420< v2.420.ac00.18.r.20200217v2.420.ac00.18.r.20200217

15 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As tenable, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • 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.200218no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2020-04-08

Fix

  1. CISA’s required action: Apply updates per vendor instructions.due 2022-05-03

Detection

read 2026-11-04 22:56 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-48304
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2021-11-03
Patch Due Date
2022-05-03
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2020-04-08
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-q9mh-3fx2-4gj3

Frequently asked questions

What is 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.

Is CVE-2020-5735 actively exploited?

Yes. CVE-2020-5735 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-03.

What is the CVSS score for CVE-2020-5735?

CVE-2020-5735 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record