VulnerabilityModified
CVE-2020-10823
A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).
CRITICAL 9.8EPSS 4.42%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A stack-based buffer overflow in /cgi-bin/activate.cgi through var parameter on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request (issue 1 of 3).
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.42% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- draytek/vigor300b firmware · draytek/vigor3900 firmware · draytek/vigor2960 firmware
- Source
- cve@mitre.org
References
- https://slashd.ga/2020/03/draytek-vulnerabilities/Exploit, Third Party Advisory
- https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/
- https://slashd.ga/2020/03/draytek-vulnerabilities/Exploit, Third Party Advisory
- https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-stack-based-buffer-overflow-vulnerability/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.