CVE-2025-8006

Code execution via unvalidated XE file parsing

Published Sep 17, 2025 · Updated Sep 17, 2025

Out-of-bounds read in the XE file parser in Ashlar-Vellum Cobalt 12 SP1 allows remote attackers to execute code via a crafted file. The parser fails to validate user-supplied XE data before reading an allocated data structure, causing a read past its end. Exploitation requires the target to visit a malicious page or open a malicious file, and resulting code runs in the current process.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in the XE file parser in Ashlar-Vellum Cobalt 12 SP1 allows remote attackers to execute code via a crafted file. The parser fails to validate user-supplied XE data before reading an allocated data structure, causing a read past its end. Exploitation requires the target to visit a malicious page or open a malicious file, and resulting code runs in the current process.

The record

CVE
CVE-2025-8006
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
Ashlar-Vellum
Product
Cobalt
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2025Record 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=12 SP1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ashlar-Vellum · Cobaltversion=12 SP1

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-125Out-of-bounds Read
T1204.002Malicious File

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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