CVE-2026-24111
CRITICALCVSS 9.8/10EPSS 0.65%
Last modified
CVE-2026-24111 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. EPSS estimates a 0.65% chance of exploitation in the next 30 days.
Description
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf` without size validation, it could lead to buffer overflow.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tenda | W20e Firmware | 15.11.0.6 |
References
- https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24111Exploit, Third Party Advisory
- https://github.com/akuma-QAQ/CVEreport/tree/main/D-link/CVE-2026-24111Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2026-24111?
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf` without size validation, it could lead to buffer overflow.
How severe is CVE-2026-24111?
CVE-2026-24111 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.65% probability of exploitation in the next 30 days.
How do I fix CVE-2026-24111?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2026-24111?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST