CVE-2026-114198

Deserialization of untrusted data in floss

State: Published
Severity: 8.7 High
Published: Oct 21, 2026
Updated: Oct 21, 2026
Reserved: Oct 21, 2026

Description

Deserialization of untrusted data in Mandiant FLARE floss releases before 3.2.0 allows arbitrary code execution when a crafted .viv or .exe.viv workspace is passed to the floss utility

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	Mandiant

Weaknesses

CWE-502 Deserialization of Untrusted Data

Affected Products

Product	Versions
flossMandiant FLARE	before 3.2.0Affected

References

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0036.mdthird-party-advisory

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