Vulnerability Intelligence Report
Squirrel sqstdstring.cpp validate_format stack-based overflow
CVE-2026-8258
A flaw has been found in Squirrel up to 3.2. Impacted is the function validate_format in the library sqstdlib/sqstdstring.cpp. Executing a manipulation can lead to stack-based buffer overflow. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
No Active Exploit Signals
CVSS Base Score
4.8
MEDIUM
EPSS Probability:0.12%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| n/a | Squirrel | 3.0 (affected), 3.1 (affected), 3.2 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.123%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | VulDB · Researcher · Switzerland |
| Reserved | 2026-05-10T15:00:09 |
| Published | 2026-05-11T00:45:11 |
| Last Updated | 2026-05-11T12:49:13 |
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