Vulnerability Details : CVE-2020-3931
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
Vulnerability category: Overflow
Products affected by CVE-2020-3931
- cpe:2.3:o:geovision:gv-as210_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:geovision:gv-as410_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:geovision:gv-as810_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:geovision:gv-gf1921_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:geovision:gv-as1010_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:geovision:gv-gf1922_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-3931
0.72%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-3931
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
TWCERT/CC |
CWE ids for CVE-2020-3931
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by:
- nvd@nist.gov (Primary)
- twcert@cert.org.tw (Secondary)
References for CVE-2020-3931
-
https://www.twcert.org.tw/tw/cp-132-3754-b77d0-1.html
TWCERT/CC台灣電腦網路危機處理暨協調中心-資安服務-台灣漏洞揭露平台 (TVN)-TVN (Taiwan Vulnerability Note) 漏洞公告-Geovision 門禁控制設備 - Buffer overflow vulnerabilityThird Party Advisory
-
https://www.acronis.com/en-us/blog/posts/backdoor-wide-open-critical-vulnerabilities-uncovered-geovision
Backdoor wide open: critical vulnerabilities uncovered in GeoVision | Acronis BlogThird Party Advisory
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