CVE-2026-114198 - Vulnerability Details - OpenCVE

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

Published: 2026-10-21

Score: 8.7 High

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Mandiant FLARE

floss

unaffected

Version	Status	Constraints
`0`	affected	< 3.2.0

No data.

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

No advisories yet.

Attack Vector Local

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0036.md

History

Wed, 21 Oct 2026 00:45:00 +0000

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		https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0036.md
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'}`

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: Mandiant

Published: 2026-10-21T00:39:47.288Z

Updated: 2026-10-21T00:39:47.288Z

Reserved: 2026-10-21T00:28:41.431Z

Link: CVE-2026-114198

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-21T01:17:38.633

Modified: 2026-10-21T01:17:38.633

Link: CVE-2026-114198

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-502
Deserialization of Untrusted Data

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