CVE-2024-13048

Code execution via unchecked XE file bounds

Published Dec 30, 2024 · Updated Dec 30, 2024

Out-of-bounds write in the XE parser in Ashlar-Vellum Cobalt 1204.90 allows remote attackers to execute code through a crafted file. The parser fails to validate user-supplied XE data against an allocated buffer's bounds, permitting a write beyond the buffer. Exploitation requires a user to open the file or visit a malicious page, and successful code runs with the current process's privileges.

CVSS severity7.8
High
EPSS probability0.30%
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 write in the XE parser in Ashlar-Vellum Cobalt 1204.90 allows remote attackers to execute code through a crafted file. The parser fails to validate user-supplied XE data against an allocated buffer's bounds, permitting a write beyond the buffer. Exploitation requires a user to open the file or visit a malicious page, and successful code runs with the current process's privileges.

The record

CVE
CVE-2024-13048
Published
Dec 30, 2024
Updated
Dec 30, 2024
Vendor
Ashlar-Vellum
Product
Cobalt
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2024Record 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=1204.90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Ashlar-Vellum · Cobaltversion=1204.90

Published CVSS scores

7.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-787Out-of-bounds Write
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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