No exploitation reportedFix available

CVE-2022-2121

Q: Is CVE-2022-2121 actively exploited?

Active exploitation of CVE-2022-2121 has not been confirmed. Its EPSS score was 0.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-2121?

CVE-2022-2121 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-06-24
Fixed in3.6.7
WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Timeline

dates in UTC

2022-06-2415:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-2121?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-2121?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Offis dcmtk

Branch	Affected	Fixed in	Source
3.6	< 3.6.7	3.6.7	NVD · CISA-ADP

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSMA-22-174-01 CISA1 known affected
OFFIS DCMTK
DCMTK: All versions prior to 3.6.7

Full record on NVD

Fix

Update Offis dcmtk to 3.6.7
Vendor fix CISA ICSMA-22-174-01 · 1 productOFFIS recommends all users update to Version 3.6.7 or later. For more information see Bug #1021

Advisories and patches

www.cisa.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-07-26
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.16.5read 2026-10-23
NVDCVSS 2.03.3read 2026-10-23
CNAweakness (CWE)CWE-476read 2026-10-23
FIRST EPSSEPSS score0.8 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2022-06-24
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-2121?

OFFIS DCMTK's (All versions prior to 3.6.7) has a NULL pointer dereference vulnerability while processing DICOM files, which may result in a denial-of-service condition.

Is CVE-2022-2121 actively exploited?

Active exploitation of CVE-2022-2121 has not been confirmed. Its EPSS score was 0.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-2121?

CVE-2022-2121 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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