CVE-2024-9261: IrfanView SID File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Routine

HIGH 7.8DOWNGRADE

CVE-2024-9261 is a high-severity flaw (CVSS 7.8) affecting irfanview. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IrfanView SID File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. 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 SID files. The issue results from the lack of proper validation of th

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2024-11-22
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2024-11-22 22:15 UTCPublished CVE record published
2026-06-17 08:24 UTCUpdated Record last modified

irfanview irfanview DOWNGRADE

Affected: 4.66

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.66

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.66 (Debian / Ubuntu)

apt-cache madison irfanview sudo apt install irfanview=<VERSION_BEFORE_4.66> sudo apt-mark hold irfanview

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

dnf --showduplicates list irfanview sudo dnf downgrade irfanview-<VERSION_BEFORE_4.66> sudo dnf versionlock add irfanview

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-2024-9261?

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

Is CVE-2024-9261 being exploited?

CVE-2024-9261 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-2024-9261 affect?

CVE-2024-9261 affects irfanview. Severity is high (CVSS 7.8). IrfanView SID File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit

How urgent is CVE-2024-9261?

Priority 35/100. High severity

Related CVEs

CVE-2024-9767 HIGH 7.8 DOWNGRADE IrfanView SID File Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability
CVE-2024-9260 HIGH 7.8 DOWNGRADE IrfanView SID File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
CVE-2024-9259 HIGH 7.8 DOWNGRADE IrfanView SID File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
CVE-2024-9258 HIGH 7.8 DOWNGRADE IrfanView SID File Parsing Uninitialized Pointer Remote Code Execution Vulnerability
CVE-2024-6822 HIGH 7.8 DOWNGRADE IrfanView CIN File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

References

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