How severe is CVE-2022-2121?

CVE-2022-2121 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-2121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-2121?

CVE-2022-2121 affects Offis Dcmtk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-2121?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-2121 published?

CVE-2022-2121 was published on 2022-06-24 and last updated on 2026-06-17.

CVE-2022-2121

CVE-2022-2121 is a high-severity vulnerability in Offis Dcmtk with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 3.3
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Offis Dcmtk
Published: 2022-06-24
Last modified: 2026-06-17

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.

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.
How severe is CVE-2022-2121?: CVE-2022-2121 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-2121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-2121?: CVE-2022-2121 affects Offis Dcmtk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-2121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-2121 published?: CVE-2022-2121 was published on 2022-06-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:offis:dcmtk:*:*:*:*:*:*:*:*

More vulnerabilities in Offis Dcmtk

CVE-2019-1010228 — Critical (CVSS 9.8): OFFIS.de DCMTK 3.6.3 and below is affected by: Buffer Overflow. The impact is: Possible code execution and confirmed…
CVE-2024-52333 — High (CVSS 8.4): An improper array index validation vulnerability exists in the determineMinMax functionality of OFFIS DCMTK 3.6.8. A…
CVE-2024-47796 — High (CVSS 8.4): An improper array index validation vulnerability exists in the nowindow functionality of OFFIS DCMTK 3.6.8. A specially…
CVE-2024-27628 — High (CVSS 8.1): Buffer Overflow vulnerability in DCMTK v.3.6.8 allows an attacker to execute arbitrary code via the EctEnhancedCT…
CVE-2025-25475 — High (CVSS 7.5): A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial…
CVE-2024-28130 — High (CVSS 7.5): An incorrect type conversion vulnerability exists in the DVPSSoftcopyVOI_PList::createFromImage functionality of OFFIS…

All CVEs affecting Offis Dcmtk →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →