CVE-2020-10824: draytek vigor2960 Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
Published 26-03-2020Last modified 05-05-2025
Vulnerability summary
CVE-2020-10824 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in draytek vigor2960. EPSS estimates a 4.08% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
4.08%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 26-03-2020PublishedVulnerability first disclosed.
- 05-05-2025Last modifiedVulnerability information updated.
Description
A stack-based buffer overflow in /cgi-bin/activate.cgi through ticket 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 2 of 3).
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.08%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.08% on 21-09-2026
21-09-202621-10-2026
EPSS score4.08%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (slashd.ga)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Draytek3 products
- vigor2960< 1.5.1
- vigor300b_firmware< 1.5.1
- vigor3900_firmware< 1.5.1
1 vendor · 3 products
References
2 links- www.draytek.com/about/…X Refsource CONFIRM