CVE-2020-5736: Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777

Q: How do I fix CVE-2020-5736?

1080-lite 8ch firmware: mitigate or apply the listed mitigation; amdv10814-h5 firmware: mitigate or apply the listed mitigation; ipm-721 firmware: upgrade to v2.420.ac00.18.r.20200217. Exact commands for each OS are on this page.

Q: Is CVE-2020-5736 being exploited?

CVE-2020-5736 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-5736 affect?

CVE-2020-5736 affects 1080-lite 8ch firmware, amdv10814-h5 firmware, ipm-721 firmware. Severity is medium (CVSS 6.5). Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777. An authenticated remote attacker can abuse this issue to crash the device.

Q: How urgent is CVE-2020-5736?

Priority 42/100. No elevated risk signals yet.

This month

MEDIUM 6.5MITIGATEMITIGATEUPGRADE

CVE-2020-5736 is a medium-severity flaw (CVSS 6.5) affecting 1080-lite 8ch firmware, amdv10814-h5 firmware, ipm-721 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777. An authenticated remote attacker can abuse this issue to crash the device.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-476
Published	2020-04-08
Last modified	2026-06-17

Publisher (CNA): Tenable Network Security, Inc. · Vendor: amcrest

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-04-08 13:15 UTCPublished CVE record published
2026-06-17 03:22 UTCUpdated Record last modified

amcrest 1080-lite 8ch firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

amcrest amdv10814-h5 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

amcrest ipm-721 firmware UPGRADE

Affected: < v2.420.ac00.18.r.20200217

Fixed in: v2.420.ac00.18.r.20200217

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

amcrest ip2m-841 firmware UPGRADE

Affected: < v2.420.ac00.18.r.20200217

Fixed in: v2.420.ac00.18.r.20200217

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

amcrest ip2m-841-v3 firmware UPGRADE

Affected: < v2.800.0000000.6.r.200314

Fixed in: v2.800.0000000.6.r.200314

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

amcrest ip2m-853ew firmware UPGRADE

Affected: < v2.623.00ac004.0.r.200316

Fixed in: v2.623.00ac004.0.r.200316

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-5736?

1080-lite 8ch firmware: mitigate or apply the listed mitigation; amdv10814-h5 firmware: mitigate or apply the listed mitigation; ipm-721 firmware: upgrade to v2.420.ac00.18.r.20200217. Exact commands for each OS are on this page.

Is CVE-2020-5736 being exploited?

CVE-2020-5736 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-5736 affect?

CVE-2020-5736 affects 1080-lite 8ch firmware, amdv10814-h5 firmware, ipm-721 firmware. Severity is medium (CVSS 6.5). Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777. An authenticated remote attacker can abuse this issue to crash the device.

How urgent is CVE-2020-5736?

Priority 42/100. No elevated risk signals yet.

Related CVEs

CVE-2020-5735 HIGH 8.8 EXPLOITED MITIGATE MITIGATE Amcrest Cameras and NVR Stack-based Buffer Overflow Vulnerability

References

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