Vulnerability · Published Apr 27, 2026 · Assigned by VulDB
CVE-2026-7100Tenda F456 httpd Natlimit fromNatlimitof buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in F456 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 50.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Tenda F456 1.0.0.5. The impacted element is the function fromNatlimitof of the file /goform/Natlimit of the component httpd. Executing a manipulation can lead to buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-359675 | Tenda F456 httpd Natlimit fromNatlimitof buffer overflow vdb-entry, technical-description
- VDB-359675 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #798473 | Tenda F456 v1.0.0.5 Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vuldb_new/blob/main/F456/vul_138/README.md exploit
- https://www.tenda.com.cn/ product