CVE-2020-5735
HIGHCVSS 8.8/10Actively ExploitedEPSS 35.64%
Last modified
CVE-2020-5735 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 35.64% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amcrest | 1080-Lite 8ch Firmware | All versions |
| Amcrest | Amdv10814-H5 Firmware | All versions |
| Amcrest | Ipm-721 Firmware | < v2.420.ac00.18.r.20200217 |
| Amcrest | Ip2m-841 Firmware | < v2.420.ac00.18.r.20200217 |
| Amcrest | Ip2m-841-V3 Firmware | < v2.800.0000000.6.r.200314 |
| Amcrest | Ip2m-853ew Firmware | < v2.623.00ac004.0.r.200316 |
| Amcrest | Ip2m-858w Firmware | < v2.623.00ac004.0.r.200316 |
| Amcrest | Ip2m-866w Firmware | < v2.623.00ac004.0.r.200316 |
| Amcrest | Ip2m-866ew Firmware | < v2.623.00ac004.0.r.200316 |
| Amcrest | Ip4m-1053ew Firmware | < v2.623.00ac004.0.r.200316 |
| Amcrest | Ip8m-2454ew Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ip8m-2493eb Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ip8m-2496eb Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ip8m-2597e Firmware | < v2.800.00ac000.0.r.200330 |
| Amcrest | Ip8m-Mb2546ew Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ip8m-Mt2544ew Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ip8m-T2499ew Firmware | < v2.622.00ac000.0.r.200320 |
| Amcrest | Ipm-Hx1 Firmware | < v2.420.ac00.18.r.20200217 |
References
- http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
- https://www.tenable.com/security/research/tra-2020-20Third Party Advisory
- http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.htmlExploit, Third Party Advisory, VDB Entry
- https://www.tenable.com/security/research/tra-2020-20Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5735US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
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.
How severe is CVE-2020-5735?
CVE-2020-5735 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 35.64% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2020-5735?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Scan your code nowSource: NVD / NIST