CVE-2025-29070
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2...
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
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
What each source reports
CVE List Score used
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
CVE-2025-29070- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2025-9489
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
EUVD-2025-9489- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qgv4-vprj-x2fq
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2...
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service.
- Record
GHSA-qgv4-vprj-x2fq- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
CVE-2025-29070- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
OSV
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
CVE-2025-29070- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2025-29070
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
DEBIAN-CVE-2025-29070- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVAZL-59467 No score
CVE-2025-29070 affecting package openjpeg2 2.3.1-12
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
AZL-59467- Updated
- 2026-11-02
OSVAZL-61816 No score
CVE-2025-29070 affecting package openjpeg2 2.3.1-12
A heap buffer overflow vulnerability has been identified in thesmooth2() in cmsgamma.c in lcms2-2.16 which allows a remote attacker to cause a denial of service. NOTE: the Supplier disputes this because "this is not exploitable as this function is never called on normal color management, is there only as a helper for low-level programming and investigation."
- Record
AZL-61816- Updated
- 2026-11-05
OSVROOT-OS-DEBIAN-12-CVE-2025-29070 No score
CVE-2025-29070 in lcms2 - Patched by Root
Root has patched CVE-2025-29070 in the lcms2 package for Root:Debian:12. Multiple fixed versions available.
- Record
ROOT-OS-DEBIAN-12-CVE-2025-29070- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openjpeg2Azure Linux:2 |
through 2.3.1-12 | None known |
openjpeg2Azure Linux:3 |
through 2.3.1-12 | None known |
lcms2Debian:12 |
All versions, plus listed versions 2.14-22.14-2+deb12u12.16-12.16-22.17-12.17-1.12.19.1-1 |
None known |
lcms2Debian:13 |
All versions, plus listed versions 2.16-22.16-2+deb13u12.16-2+deb13u22.17-12.17-1.12.19.1-1 |
None known |
lcms2Debian:14 |
All versions, plus listed versions 2.16-22.17-12.17-1.12.19.1-1 |
None known |
lcms2Root:Debian:12 |
before 2.14-2+deb12u1.aikido.2 | 2.14-2+deb12u1.aikido.2 |
rootio-lcms2Root:Debian:12 |
before 2.14-2+deb12u1.aikido.2 | 2.14-2+deb12u1.aikido.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-29070 is a high vulnerability (CVSS 7.5) in lcms2, published April 1, 2025. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in lcms2 2.14-2+deb12u1.aikido.2.