CVE-2020-3931
GeoVision Door Access Control Device - Buffer overflow vulnerability
- Published
- Updated
- Reserved
- Assigned by
- twcert
Description
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
Timeline
ID reserved
By twcert
- 7 months later
· 7 months later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| twcertCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
GeoVision · Door Access Control Device
- affected GV-AS210 – ≤ 2.21
- affected GV-AS410 – ≤ 2.21
- affected GV-AS810 – ≤ 2.21
- affected GV-GF192x – ≤ 1.10
- affected GV-AS1010 – ≤ 1.32
What to do
Solution: Update to version 2.22 in GV-AS210, Update to version 2.22 in GV-AS410, Update to version 2.22 in GV-AS810, Update to version 1.22 in GV-GF192x, Update to version 1.33 in GV-AS1010
References (2)
- https://www.twcert.org.tw/tw/cp-132-3754-b77d0-1.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.acronis.com/en-us/blog/posts/backdoor-wide-open-critical-vulnerabilities-uncovered-geovision (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-3931)Record last updated .