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CVE-2020-5735

88
FAUCET Score

CVE-2020-5735 describes a critical stack-based buffer overflow vulnerability affecting Amcrest cameras and Network Video Recorders (NVRs) accessible via port 37777. An authenticated remote attacker can exploit this flaw to cause a denial of service and potentially achieve arbitrary code execution. With a CVSS score of 8.8 (High), this vulnerability is easily exploitable over the network with low privileges, leading to high impacts on confidentiality, integrity, and availability. This CVE is actively exploited in the wild, as confirmed by its presence in the KEV catalog, and has garnered significant community discussion, though no Metasploit or Nuclei modules are publicly available.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:amcrest:1080-lite_8ch_firmware:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:amcrest:amdv10814-h5_firmware:-:*:*:*:*:*:*:*
< v2.420.ac00.18.r.20200217CPE matchmatch criteria
cpe:2.3:o:amcrest:ipm-721_firmware:*:*:*:*:*:*:*:*
< v2.420.ac00.18.r.20200217CPE matchmatch criteria
cpe:2.3:o:amcrest:ip2m-841_firmware:*:*:*:*:*:*:*:*
< v2.800.0000000.6.r.200314CPE matchmatch criteria
cpe:2.3:o:amcrest:ip2m-841-v3_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
35.64%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 3, 2021
ExploitDB: EDB-48304 · Apr 8, 2020
This CVE's current EPSS score of 0.3564 is in the 98th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

boschvendor investigatingvia llm_extracted
maxkbvendor investigatingvia llm_extracted
nxpvendor investigatingvia llm_extracted
openfirevendor investigatingvia llm_extracted
openstackvendor investigatingvia llm_extracted
opnsensevendor investigatingvia llm_extracted

Vendor Advisories (6)

maxkbllm-maxkb-a67bbadb3e5cd0c2CRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020
openstackllm-openstack-45b0db8d5ab5fcaeCRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020
nxpllm-nxp-e4d5c15d2e29378bCRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020
boschllm-bosch-a2eed6e7e77f582cCRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020
opnsensellm-opnsense-8fd2782a9d8afbfaCRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020
openfirellm-openfire-b0039235ec8c87c0CRITICAL

Amcrest Camera/NVR Multiple Vulnerabilities

Apr 7, 2020

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html
ExploitThird Party AdvisoryVDB Entry
tenable.com / security/research/tra-2020-20
Third Party Advisory