CVE-2024-24793: A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libd

This week

HIGH 8.1REMOTEDOWNGRADE

CVE-2024-24793 is a high-severity flaw (CVSS 8.1) affecting libdicom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libdicom 1.0.5. A specially crafted DICOM file can cause premature freeing of memory that is used later. To trigger this vulnerability, an attacker would need to induce the vulnerable application to process a malicious DICOM image.The Use-After-Free happens in the `parse_meta_element_create()` parsing the elements in the File Meta Information

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 36%)
CISA exploited list	No
Weakness	CWE-416
Published	2024-02-20
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: nih

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

Am I affected?

Timeline

2024-02-20 11:15 UTCPublished CVE record published
2026-06-17 07:14 UTCUpdated Record last modified

nih libdicom DOWNGRADE

Affected: 1.0.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.5 (Debian / Ubuntu)

apt-cache madison libdicom sudo apt install libdicom=<VERSION_BEFORE_1.0.5> sudo apt-mark hold libdicom

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

dnf --showduplicates list libdicom sudo dnf downgrade libdicom-<VERSION_BEFORE_1.0.5> sudo dnf versionlock add libdicom

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-2024-24793?

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

Is CVE-2024-24793 being exploited?

CVE-2024-24793 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-2024-24793 affect?

CVE-2024-24793 affects libdicom. Severity is high (CVSS 8.1). A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libdicom 1.0.5. A specially crafted DICOM file can cause premature freeing of memory that is used later. To trigger this vulnerability

How urgent is CVE-2024-24793?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2024-24794 HIGH 8.1 DOWNGRADE A use-after-free vulnerability exists in the DICOM Element Parsing as implemented in Imaging Data Commons libd

References

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