CVE-2025-15350

Code execution via unvalidated CHX deserialization

Published Jan 23, 2026 · Updated Jan 23, 2026

CHX file deserialization in Anritsu VectorStar 2024.11.1 allows remote attackers to execute code after a malicious file is opened. The CHX parser deserializes user-supplied data without sufficient validation, allowing objects in a crafted file to execute code in the current process. Exploitation requires the operator to open the file or visit a malicious page; no network-only trigger or privilege escalation is reported.

CVSS severity7.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CHX file deserialization in Anritsu VectorStar 2024.11.1 allows remote attackers to execute code after a malicious file is opened. The CHX parser deserializes user-supplied data without sufficient validation, allowing objects in a crafted file to execute code in the current process. Exploitation requires the operator to open the file or visit a malicious page; no network-only trigger or privilege escalation is reported.

The record

CVE
CVE-2025-15350
Published
Jan 23, 2026
Updated
Jan 23, 2026
Vendor
Anritsu
Product
VectorStar
Classifications
CWE-502, T1204.002, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2024.11.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Anritsu · VectorStarversion=2024.11.1

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204.002Malicious File
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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