CVE-2020-10827 — A stack-based buffer overflow in apmd on Draytek Vigor3900, Vigor2960, and Vigor

A stack-based buffer overflow in apmd on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request.

01What is this vulnerability?

A stack-based buffer overflow in apmd on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve code execution via a remote HTTP request.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-03-26T16:05:12.000Z
• Last modified: 2025-05-05T17:08:37.234Z

09References

• slashd.ga — https://slashd.ga/2020/03/draytek-vulnerabilities/
• www.draytek.com — https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300…