CVE-2026-71911
DrayTek VigorAP Multiple Models Buffer Overflow via setLan
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.4.11, 1.4.12, 1.4.13, 1.4.15, 1.4.22
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Multiple DrayTek VigorAP models contain a buffer overflow vulnerability in the setLan function. The vulnerability is caused by missing length checks during memory copy operations involving the lanVlanId0, lanIp, and lanNetmask fields. A remote attacker can trigger this vulnerability via crafted input, causing a denial of service or potentially executing arbitrary commands. Exploitation requires valid administrative credentials for the device's web management interface.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- DrayTek Corporation VigorAP 918R
fixed in 1.4.11
- DrayTek Corporation VigorAP 960C
fixed in 1.4.12
- DrayTek Corporation VigorAP 1060C
fixed in 1.4.12
- DrayTek Corporation VigorAP 906
fixed in 1.4.13
- DrayTek Corporation VigorAP 912C
fixed in 1.4.15
- DrayTek Corporation VigorAP 903
fixed in 1.4.22