Ashlar-Vellum Cobalt/Xenon/Argon/Lithium/Cobalt Share prior 12.6.1204.204 VC6 File Parser heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium and Cobalt Share. This affects an unknown part of the component VC6 File Parser. Such manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2025-46269. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Ashlar-Vellum Cobalt, Xenon, Argon, Lithium and Cobalt Share. Affected by this issue is an unknown code block of the component VC6 File Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Ashlar-Vellum Cobalt, Xenon, Argon, Lithium, and Cobalt Share versions prior to 12.6.1204.204, the affected applications lack proper validation of user-supplied data when parsing VC6 files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2025-46269. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 12.6.1204.204 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Cobalt/Xenon/Argon/Lithium/Cobalt Share 12.6.1204.204

Timelineinfo

08/12/2025 Advisory disclosed
08/12/2025 +0 days VulDB entry created
08/19/2025 +7 days VulDB entry last update

Sourcesinfo

Advisory: icsa-25-224-01
Status: Confirmed

CVE: CVE-2025-46269 (🔒)
GCVE (CVE): GCVE-0-2025-46269
GCVE (VulDB): GCVE-100-319772

Entryinfo

Created: 08/12/2025 20:48
Updated: 08/19/2025 11:25
Changes: 08/12/2025 20:48 (52), 08/19/2025 11:25 (25)
Complete: 🔍
Cache ID: 216::103

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