CVE-2026-114198— Deserialization of untrusted data in floss
Quick assessment
Affected
Mandiant FLARE floss
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mandiant FLARE floss 在 3.2.0 版本之前存在不受信任数据反序列化漏洞。当向 floss 工具传入经过恶意构造的 或 工作区文件时，攻击者可利用该漏洞实现任意代码执行。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-114198
Vulnerability Information
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Vulnerability Title
Deserialization of untrusted data in floss
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mandiant FLARE | floss | 0 ~ 3.2.0 | - |
|
II. Public POCs for CVE-2026-114198
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-114198 (1)
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V. Comments for CVE-2026-114198
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