Is CVE-2026-12805 in the CISA KEV catalog?

No. CVE-2026-12805 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-12805?

CVE-2026-12805 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2026-12805?

CVE-2026-12805 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12805?

Upgrade dcmtk on debian unstable to 3.7.0+really3.7.0-6 or later.

CVE & CISA-KEV Catalog

CVE-2026-12805

MEDIUM

6.3

CVSS v3

NVD

Description

A flaw has been found in OFFIS DCMTK up to 3.7.0. The affected element is the function XMLNode::parseFile in the library ofstd/libsrc/ofxml.cc. Executing a manipulation can lead to heap-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used. This patch is called 1d4b3815c0987840a983160bfc671fef63a3105b. It is best practice to apply a patch to resolve this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CWE-119Buffer Overflow CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available

dcmtkDebian

Fixed in:3.7.0+really3.7.0-6CVE-2026-12805

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Other references8

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-23.