Ashlar-Vellum Cobalt/Cobalt Share/Xenon/Argon/Lithium prior 12 SP2 Build out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Ashlar-Vellum Cobalt, Cobalt Share, Xenon, Argon and Lithium. It has been declared as critical. This affects an unknown part. Such manipulation leads to out-of-bounds write. This vulnerability is uniquely identified as CVE-2023-39943. Local access is required to approach this attack. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Ashlar-Vellum Cobalt, Cobalt Share, Xenon, Argon and Lithium and classified as critical. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Ashlar-Vellum Cobalt versions prior to v12 SP2 Build (1204.200), the affected application lacks proper validation of user-supplied data when parsing XE files. This could lead to an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process.

The weakness was disclosed by Michael Heinzl as icsa-23-299-03. The advisory is shared for download at cisa.gov. This vulnerability is handled as CVE-2023-39943 since 08/10/2023. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

Upgrading to version 12 SP2 Build eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

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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: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (icscert): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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/Cobalt Share/Xenon/Argon/Lithium 12 SP2 Build

Timelineinfo

08/10/2023 🔍
02/05/2025 +545 days 🔍
02/05/2025 +0 days 🔍
09/16/2025 +223 days 🔍

Sourcesinfo

Advisory: icsa-23-299-03
Researcher: Michael Heinzl
Status: Confirmed

CVE: CVE-2023-39943 (🔍)
GCVE (CVE): GCVE-0-2023-39943
GCVE (VulDB): GCVE-100-294692

Entryinfo

Created: 02/05/2025 06:44
Updated: 09/16/2025 21:29
Changes: 02/05/2025 06:44 (76), 09/16/2025 21:29 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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