CVE-2024-11950: XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability

This month

HIGH 8.8DOWNGRADE

CVE-2024-11950 is a high-severity flaw (CVSS 8.8) affecting xnview. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of RWZ files. The issue results from the lack of proper v

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-191
Published	2024-12-12
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: xnview

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-12-12 01:40 UTCPublished CVE record published
2026-06-17 06:58 UTCUpdated Record last modified

xnview xnview DOWNGRADE

Affected: 2.51.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.51.5

1. Check installed version

apt-cache policy xnview || rpm -q xnview || xnview --version

2. No fixed release: DOWNGRADE to a release before 2.51.5 (Debian / Ubuntu)

apt-cache madison xnview sudo apt install xnview=<VERSION_BEFORE_2.51.5> sudo apt-mark hold xnview

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xnview sudo dnf downgrade xnview-<VERSION_BEFORE_2.51.5> sudo dnf versionlock add xnview

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-11950?

xnview: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-11950 being exploited?

CVE-2024-11950 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-11950 affect?

CVE-2024-11950 affects xnview. Severity is high (CVSS 8.8). XnSoft XnView Classic RWZ File Parsing Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of XnSoft XnView Classic. User interaction is requi

How urgent is CVE-2024-11950?

Priority 41/100. High severity

References

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