How to Fix CVE-2026-24109: n/a (Bundle Sibling)
By Sai Kiran Pandrala. Last verified: 2026-05-25.
CVE-2026-24109 is a sibling vulnerability in the same vendor advisory as CVE-2026-24107. Apply the same patched build and you close both. The technical detail below is what differs.
| Severity | 9.8 (Critical) |
|---|---|
| Actively exploited? | No public listing in CISA KEV |
| Affected | n/a n/a |
| Fixed in | Same patched build as CVE-2026-24107 |
| Type (CWE) | CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') |
What's different about CVE-2026-24109?
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of picName. When this value is used in sprintf without validating variable sizes, it could lead to a buffer overflow vulnerability.
How to fix CVE-2026-24109
Apply the patched build per the primary write-up: How to Fix CVE-2026-24107. All commands, verification steps, and rollback notes for n/a are listed there.
Frequently asked questions
Does the CVE-2026-24107 patch close CVE-2026-24109?
Yes. Both CVEs are addressed by the same vendor patch. Applying the patched build closes the full bundle.
Is CVE-2026-24109 listed in CISA KEV?
No public KEV listing at the time of this writing.
Where is the official advisory?
See https://www.tenda.com.cn/material/show/2707
References
- Official vendor advisory: https://www.tenda.com.cn/material/show/2707
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24109
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary: How to Fix CVE-2026-24107
*Written by Sai Kiran Pandrala. Part of the n/a bundle. Full procedure at how-to-fix-cve-2026-24107.*