CVE-2026-114198

Deserialization of untrusted data in floss

Published Oct 21, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mandiant Flare
Mandiant Flare floss
Vendors & Products Mandiant Flare
Mandiant Flare floss
Type Values Removed Values Added
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
Title Deserialization of untrusted data in floss
Weaknesses CWE-502
References
Metrics cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mandiant
Published
Updated
Oct 21, 2026, 5:19 PM
Reserved
Oct 21, 2026, 12:28 AM
Status
Awaiting Analysis
Published
Oct 21, 2026, 1:17 AM
Modified
Oct 22, 2026, 5:36 PM