XnView Classic 2.52.5 FLI File Parser starting_line heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k1.31

Summaryinfo

A vulnerability categorized as critical has been discovered in XnView Classic 2.52.5. The affected element is an unknown function of the component FLI File Parser. Such manipulation of the argument starting_line leads to heap-based overflow. This vulnerability is documented as CVE-2026-107125. The attack can be executed remotely. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in XnView Classic 2.52.5. It has been rated as critical. Affected by this issue is an unknown functionality of the component FLI File Parser. The manipulation of the argument starting_line 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.

The advisory is available at newsgroup.xnview.com. This vulnerability is handled as CVE-2026-107125. 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. Technical details as well as a exploit are known.

It is declared as proof-of-concept.

Upgrading to version 2.52.6 eliminates this vulnerability. The upgrade is hosted for download at xnview.com.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Yes

Availability: 🔒
Status: Proof-of-Concept
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: Classic 2.52.6

Timelineinfo

10/07/2026 Advisory disclosed
10/07/2026 +0 days VulDB entry created
10/07/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: newsgroup.xnview.com
Status: Confirmed

CVE: CVE-2026-107125 (🔒)
GCVE (CVE): GCVE-0-2026-107125
GCVE (VulDB): GCVE-100-414926
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/07/2026 09:53
Changes: 10/07/2026 09:53 (56)
Complete: 🔍
Submitter: jonzab
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #993948: XnSoft XnView 2.52.5.0 Heap Buffer Overflow Remote Code Execution (by jonzab)

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