CVE-2020-5735
Status: AnalyzedHigh (8.8)⚠ Active exploitation
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.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 36%
- Percentile among all scored CVEs: 98
- Score date: 10/3/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
CISA KEV — actively exploited
- Added to catalog: 11/3/2021
- Remediation due date: 5/3/2022
- Known ransomware use: Unknown
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1210Exploitation of Remote Serviceslateral movement85 % - Primary impact
T1059Command and Scripting Interpreterexecution80 % - Secondary impact
T1499.004Application or System Exploitationimpact75 %
Stack-based buffer overflow en servicio remoto (puerto 37777) requiere autenticación previa (PR:L), permitiendo ejecución de código (CWE-787) o negación de servicio. AV:N + servicio remoto → T1210.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (18)
Amcrest — 1080-lite 8CH FirmwareAmcrest — Amdv10814-h5 FirmwareAmcrest — Ip2m-841-v3 FirmwareAmcrest — Ip2m-841 FirmwareAmcrest — Ip2m-853ew FirmwareAmcrest — Ip2m-858w FirmwareAmcrest — Ip2m-866ew FirmwareAmcrest — Ip2m-866w FirmwareAmcrest — Ip4m-1053ew FirmwareAmcrest — Ip8m-2454ew FirmwareAmcrest — Ip8m-2493eb FirmwareAmcrest — Ip8m-2496eb FirmwareAmcrest — Ip8m-2597e FirmwareAmcrest — Ip8m-mb2546ew FirmwareAmcrest — Ip8m-mt2544ew FirmwareAmcrest — Ip8m-t2499ew FirmwareAmcrest — Ipm-721 FirmwareAmcrest — Ipm-hx1 Firmware
CWEs
- CWE-121
- CWE-787
References
- http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html
- https://www.tenable.com/security/research/tra-2020-20
- http://packetstormsecurity.com/files/157164/Amcrest-Dahua-NVR-Camera-IP2M-841-Denial-Of-Service.html
- https://www.tenable.com/security/research/tra-2020-20
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5735
Raw JSON (NVD)
Show
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