CVE-2024-41593: draytek vigor1000b_firmware Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
Published 03-10-2024Last modified 13-03-2025
Vulnerability summary
CVE-2024-41593 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in draytek vigor1000b_firmware. EPSS estimates a 0.89% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.89%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 03-10-2024PublishedVulnerability first disclosed.
- 13-03-2025Last modifiedVulnerability information updated.
Description
DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function ft_payload_dns(), because a byte sign-extension operation occurs for the length argument of a _memcpy call, leading to a heap-based Buffer Overflow.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 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
EPSS trend
Probability
0.89%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.89% on 21-09-2026
21-09-202621-10-2026
EPSS score0.89%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Draytek13 products
- vigor1000b_firmware< 4.3.2.8 | ≥ 4.4.0.0, < 4.4.3.1
- vigor165_firmware< 4.2.7
- vigor166_firmware< 4.2.7
- vigor2135_firmware< 4.4.5.3
- vigor2763_firmware< 4.4.5.3
1 vendor · 13 products
References
2 links- www.forescout.com/resources/draybreak-draytek-research/MitigationTechnical DescriptionThird Party Advisory