CVE-2020-3931 json
GeoVision Door Access Control Device - Buffer overflow vulnerability
published 2020-07-08 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-25196
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
Patch / fix
- geovision gv-as210_firmware 2.21
- geovision gv-as410_firmware 2.21
- geovision gv-as810_firmware 2.21
- geovision gv-gf1921_firmware 1.10
- geovision gv-as1010_firmware 1.32
- geovision gv-gf1922_firmware 1.10
Exploit prediction
1.77% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- GeoVision Door Access Control Device
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
twcert.org.tw
/tw/cp-132-3754-b77d0-1.html
third-party-advisory
-
acronis.com
/en-us/blog/posts/backdoor-wide-open-critical-vulnerabilities-uncovered-geovision
third-party-advisory
Sources
- CVE List CVE-2020-3931
- NVD CVE-2020-3931
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