CVE-2026-10067Network attack vector

Authenticated code execution via multimon.cgi stack overflow

Published May 29, 2026 · Updated May 29, 2026

Stack-based buffer overflow in Shibby Tomato 1.28 allows remote authenticated users to execute code through multimon.cgi requests. Published analysis places the overflow in sub_90F0, but the public record does not identify the request field or unsafe copy operation that overruns the stack buffer. Low-privileged network access is required; a successful overwrite can crash the CGI process or redirect control flow on the router.

CVSS severity8.8
High
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in Shibby Tomato 1.28 allows remote authenticated users to execute code through multimon.cgi requests. Published analysis places the overflow in sub_90F0, but the public record does not identify the request field or unsafe copy operation that overruns the stack buffer. Low-privileged network access is required; a successful overwrite can crash the CGI process or redirect control flow on the router.

The record

CVE
CVE-2026-10067
Published
May 29, 2026
Updated
May 29, 2026
Vendor
Shibby
Product
Tomato
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.28

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shibby · Tomatoversion=1.28

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo