Vulnerability · Published Jul 18, 2026 · Assigned by VulDB

CVE-2026-16096Shibby Tomato webmon_recent_domains sub_40BB50 stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in Tomato from Shibby. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 54.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Shibby Tomato 1.28 RT-N5x MIPSR2 Build 124. This affects the function sub_40BB50 of the file /proc/webmon_recent_domains. The manipulation leads to stack-based buffer overflow. It is possible to initiate the attack remotely. This project is superseded by FreshTomato.

Affected products (as reported)

Vendor	Product	Versions
Shibby	Tomato	1.28 RT-N5x MIPSR2 Build 124

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

References

VDB-379800 | Shibby Tomato webmon_recent_domains sub_40BB50 stack-based overflow vdb-entry, technical-description
VDB-379800 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-16096 | CVE Analysis and Report third-party-advisory
Submit #855124 | Tomato by Shibby Tomato Firmware Tomato v1.28 RT-N5x MIPSR2 build 124 Mini Stack-based Buffer Overflow third-party-advisory
https://gitee.com/Fengyi-Wang/CVE/issues/IJTQ5T issue-tracking