CVE-2025-25475

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows...

7.5 HighFix available

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.59%Up 0.6 points since Feb 19, 2025

What each source reports

CVE List Score used 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: CVE-2025-25475
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

EUVDEUVD-2025-4573 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: EUVD-2025-4573
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-rqvx-2c23-x225 5.3

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows...

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: GHSA-rqvx-2c23-x225
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness: CWE-476
Updated: 2026-11-02

NVD 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: CVE-2025-25475
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSV 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: CVE-2025-25475
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-25475 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: DEBIAN-CVE-2025-25475
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

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OSVUBUNTU-CVE-2025-25475 7.5

A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK v3.6.9+ DEV allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file.

Record: UBUNTU-CVE-2025-25475
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVMGASA-2025-0076 No score

Updated dcmtk packages fix security vulnerabilities

A buffer overflow in DCMTK allows attackers to cause a Denial of Service (DoS) via a crafted DCM file (CVE-2025-25472). DCMTK was discovered to contain a buffer overflow via the component /dcmimgle/diinpxt.h (CVE-2025-25474). A NULL pointer dereference in the component /libsrc/dcrleccd.cc of DCMTK allows attackers to cause a Denial of Service (DoS) via a crafted DICOM file (CVE-2025-25475).

Record: MGASA-2025-0076
Updated: 2026-11-02

OSVopenSUSE-SU-2025:0068-1 No score

Security update for dcmtk

This update for dcmtk fixes the following issues:

CVE-2025-25472: Fixed a denial of service via a crafted DCM file (boo#1237369).
CVE-2025-25474: Fixed a denial of service via a crafted DICOM file (boo#1237365).
CVE-2025-25475: Fixed a buffer overflow via the component /dcmimgle/diinpxt.h (boo#1237355).

Record: openSUSE-SU-2025:0068-1
Updated: 2026-11-02

OSVopenSUSE-SU-2025:14823-1 No score

dcmtk-3.6.9-2.1 on GA media

These are all security issues fixed in the dcmtk-3.6.9-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2025:14823-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`dcmtk` Debian:12	before 3.6.7-9~deb12u3, plus listed versions 3.6.7-83.6.7-9~deb12u13.6.7-9~deb12u2	3.6.7-9~deb12u3
`dcmtk` Debian:13	before 3.6.9-4	3.6.9-4
`dcmtk` Debian:14	before 3.6.9-4	3.6.9-4
`dcmtk` Debian:11 From an advisory covering 7 CVEs	before 3.6.5-1+deb11u4, plus listed versions 3.6.5-13.6.5-1+deb11u13.6.5-1+deb11u23.6.5-1+deb11u3	3.6.5-1+deb11u4
`dcmtk` Mageia:9 From an advisory covering 3 CVEs	before 3.6.7-4.4.mga9	3.6.7-4.4.mga9
`dcmtk` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 3.6.0-15.13.6.1~20150629-53.6.1~20150924-43.6.1~20150924-53.6.1~20150924-5ubuntu0.1~esm13.6.1~20150924-5ubuntu0.1~esm23.6.1~20150924-5ubuntu0.1~esm3	None known
`dcmtk` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 3.6.2-23.6.2-2build13.6.2-33.6.2-3build13.6.2-3build2 Show 4 moreShow less 3.6.2-3build33.6.2-3ubuntu0.1~esm13.6.2-3ubuntu0.1~esm23.6.2-3ubuntu0.1~esm3	None known
`dcmtk` Ubuntu:Pro:20.04:LTS	All versions, plus listed versions 3.6.4-2.13.6.4-2.1build13.6.4-2.1build23.6.4-2.1ubuntu0.1~esm13.6.4-2.1ubuntu0.13.6.4-2.1ubuntu0.1+esm13.6.4-2.1ubuntu0.23.6.4-2.1ubuntu0.2+esm1	None known
`dcmtk` Ubuntu:Pro:22.04:LTS	All versions, plus listed versions 3.6.5-13.6.6-3ubuntu13.6.6-3ubuntu23.6.6-43.6.6-53.6.6-5ubuntu0.1~esm13.6.6-5ubuntu0.1~esm2	None known
`dcmtk` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 3.6.7-93.6.7-9.1build23.6.7-9.1build33.6.7-9.1build43.6.7-9.1ubuntu0.1~esm1	None known

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Affected packages
Package	Affected	Fixed
`dcmtk` Ubuntu:25.10	All versions, plus listed versions 3.6.9-43.6.9-53.6.9-5build1	None known
`dcmtk` Ubuntu:26.10	All versions, plus listed versions 3.7.0+really3.6.9-13.7.0+really3.7.0-23.7.0+really3.7.0-53.7.0+really3.7.0-63.7.0+really3.7.0-7ubuntu1	None known
`dcmtk` Ubuntu:26.04:LTS	All versions, plus listed versions 3.6.9-5build13.6.9-63.7.0+really3.6.9-1	None known
`dcmtk` SUSE:Package Hub 15 SP6 From an advisory covering 3 CVEs	before 3.6.9-bp156.4.6.1	3.6.9-bp156.4.6.1
`dcmtk` openSUSE:Leap 15.6 From an advisory covering 3 CVEs	before 3.6.9-bp156.4.6.1	3.6.9-bp156.4.6.1
`dcmtk` openSUSE:Tumbleweed From an advisory covering 3 CVEs	before 3.6.9-2.1	3.6.9-2.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-25475 is a high vulnerability (CVSS 7.5) in Offis Dcmtk, published February 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.59%, the 48th percentile. Fixed in dcmtk 3.6.7-9~deb12u3.

References

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