Review reviewHigh

CVE-2026-15544

Shibby Tomato

A vulnerability was determined in Shibby Tomato up to 1.28.0000. Affected is the function getupsvar of the file www/apcupsd/tomatodata.cgi of the component apcupsd. This manipulation of the argument Field causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. This project is superseded by FreshTomato.

CVSS: 7.4
EPSS: 0.44%
CISA KEV: Not listed
Published: 2026.07.13

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.44%

Technical severityCVSS 7.4

Vulnerability overview

Affected product and versions

Product: Shibby Tomato
Affected versions: >= 1.0, >= 1.1, >= 1.2, >= 1.3, >= 1.4, >= 1.5, >= 1.6, >= 1.7, >= 1.8, >= 1.9, >= 1.10, >= 1.11, >= 1.12, >= 1.13, >= 1.14, >= 1.15, >= 1.16, >= 1.17, >= 1.18, >= 1.19
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Shibby Tomato and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE: CWE-119, CWE-121