CVE-2026-24112: tenda w20e_firmware Classic Buffer Overflow
Vulnerability summary
CVE-2026-24112 is a critical (CVSS 9.8) Classic Buffer Overflow vulnerability in tenda w20e_firmware. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 46% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 02-03-2026PublishedVulnerability first disclosed.
- 03-03-2026Last modifiedVulnerability information updated.
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 `addWewifiWhiteUser` function and processed by `sscanf` without size validation, it could lead to a buffer overflow vulnerability.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
Increase +0.03 pp
From 0.53% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundCvereport
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Tenda1 product
- w20e_firmware15.11.0.6
1 vendor · 1 product