CVE-2026-107125

XnView Classic FLI File heap-based overflow

State: Published
Severity: 5.3 Medium
Published: Oct 7, 2026
Updated: Oct 7, 2026
Reserved: Oct 7, 2026

Description

A flaw has been found in XnView Classic 2.52.5. Impacted is an unknown function of the component FLI File Parser. This manipulation of the argument starting_line causes heap-based buffer overflow. Remote exploitation of the attack is possible. Upgrading to version 2.52.6 is recommended to address this issue. Upgrading the affected component is advised.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-122 Heap-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
ClassicXnView	2.52.5Affected 2.52.6Not affected

References

VDB-414926 | XnView Classic FLI File heap-based overflowvdb-entrytechnical-description
VDB-414926 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-107125 | CVE Analysis and Reportthird-party-advisory
Submit #993948 | XnSoft XnView 2.52.5.0 Heap Buffer Overflow Remote Code Executionthird-party-advisory
https://newsgroup.xnview.com/viewtopic.php?t=51359related
https://www.xnview.com/en/xnview/#downloadspatch

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