PoC Index85,100 CVEs with PoCs

CVE-2026-8258

Squirrel sqstdstring.cpp validate_format stack-based overflow

LOW 1.9EPSS 0.2%

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.

Affected
Squirrel
CVSS v4.0 VULDB
1.9 LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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
CVSS v3.1 VULDB
5.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v2.0 VULDB
4.3 MEDIUMAV:L/AC:L/Au:S/C:P/I:P/A:P
EPSS
0.17% chance of exploitation in the next 30 days, 6th percentile
Published
2026-05-11

Proof-of-concept exploits (1)

References

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