Critical severity · published Jul 8, 2020
CVE-2020-3931
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GF
Gv-as1010 Firmware · Geovision
before 1.32 · source: NVD
GF
Gv-as210 Firmware · Geovision
before 2.21 · source: NVD
GF
Gv-as410 Firmware · Geovision
before 2.21 · source: NVD
GF
Gv-as810 Firmware · Geovision
before 2.21 · source: NVD
GF
Gv-gf1921 Firmware · Geovision
before 1.10 · source: NVD
GF
Gv-gf1922 Firmware · Geovision
before 1.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-3931
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-3931
Third Party Advisory
https://www.acronis.com/en-us/blog/posts/backdoor-wide-open-critical-vulnerabilities-uncovered-geovision
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-3754-b77d0-1.html