CVE-2024-26540: A heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg<unsigned

Q: How do I fix CVE-2024-26540?

cimg: upgrade to 3.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2024-26540 being exploited?

CVE-2024-26540 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-26540 affect?

CVE-2024-26540 affects cimg. Severity is high (CVSS 7.8). A heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg ::_load_analyze.

Routine

HIGH 7.8UPGRADE

CVE-2024-26540 is a high-severity flaw (CVSS 7.8) affecting cimg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg<unsigned char>::_load_analyze.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-122
Published	2024-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cimg

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

Am I affected?

Timeline

2024-03-15 01:15 UTCPublished CVE record published
2026-06-17 07:17 UTCUpdated Record last modified

cimg cimg UPGRADE

Affected: < 3.3.3

Fixed in: 3.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cimg

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cimg

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2024-26540?

cimg: upgrade to 3.3.3. Exact commands for each OS are on this page.

Is CVE-2024-26540 being exploited?

CVE-2024-26540 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-2024-26540 affect?

CVE-2024-26540 affects cimg. Severity is high (CVSS 7.8). A heap-based buffer overflow in Clmg before 3.3.3 can occur via a crafted file to cimg_library::CImg<unsigned char>::_load_analyze.

How urgent is CVE-2024-26540?

Priority 38/100. High severity; Public exploit reference

Related CVEs

CVE-2023-41484 HIGH 8.1 DOWNGRADE An issue in cimg.eu Cimg Library v2.9.3 allows an attacker to obtain sensitive information via a crafted JPEG

References

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