CVE-2020-15956
ACTi
- Published
- 4 August 2020
- Last modified
- 17 June 2026
- CVSS
- 7.5 v3.1
- Severity
- high
- EPSS
- 16.2% (97th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-120
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
ActiveMediaServer.exe in ACTi NVR3 Standard Server 3.0.12.42 allows remote unauthenticated attackers to trigger a buffer overflow and application termination via a malformed payload.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 16.2% probability of exploitation activity in the next 30 days, placing it in the top decile of all scored CVEs.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| NVR | ACTi | Network video recorder | 2.3.04.07, 3.0.12.42 |
References
Vendor advisory and patch
- http://packetstormsecurity.com/files/158771/ACTi-NVR3-Standard-Professional-Server-3.0.12.42-Denial-Of-Service.html exploit
- https://github.com/megamagnus/cve-2020-15956 exploit
- http://packetstormsecurity.com/files/158771/ACTi-NVR3-Standard-Professional-Server-3.0.12.42-Denial-Of-Service.html exploit
- https://github.com/megamagnus/cve-2020-15956 exploit
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.