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CVE-2025-61146

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component...

4.0 Medium

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.14%Up 0.1 points since Feb 24, 2026
90%50%10%1%

What each source reports

CVE List Score used 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
CVE-2025-61146
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-401
Updated
2026-11-02
EUVDEUVD-2025-207617 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
EUVD-2025-207617
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-75j9-8g79-fp7r 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component...

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
GHSA-75j9-8g79-fp7r
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-401
Updated
2026-11-02
NVD 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
CVE-2025-61146
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-401
Updated
2026-11-02
OSV 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
CVE-2025-61146
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVDEBIAN-CVE-2025-61146 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
DEBIAN-CVE-2025-61146
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2025-61146 4.0

saitoha libsixel until v1.8.7 was discovered to contain a memory leak via the component malloc_stub.c.

Record
UBUNTU-CVE-2025-61146
CVSS 3.1
4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libsixel
Debian:12
 All versions, plus listed versions
1.10.3-31.10.5-11:1.8.7-11:1.8.7-21:1.8.7-3
Show 4 moreShow less
1:1.8.7-41:1.8.7-51:1.8.7-61:1.8.7-r2-1
 None known
libsixel
Debian:13
 All versions, plus listed versions
1.10.5-11:1.8.7-11:1.8.7-21:1.8.7-31:1.8.7-41:1.8.7-51:1.8.7-61:1.8.7-r2-1
 None known
libsixel
Debian:14
 All versions, plus listed versions
1.10.5-11:1.8.7-11:1.8.7-21:1.8.7-31:1.8.7-41:1.8.7-51:1.8.7-61:1.8.7-r2-1
 None known
libsixel
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.4.2-11.5.2-2
 None known
libsixel
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.5.2-21.7.3-1
 None known
libsixel
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.8.2-11.8.2-2.1
 None known
libsixel
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.8.6-21.10.3-21.10.3-3
 None known
libsixel
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.10.3-31.10.3-3build1
 None known
libsixel
Ubuntu:25.10
 All versions, plus listed versions
1.10.5-1
 None known
libsixel
Ubuntu:26.10
 All versions, plus listed versions
1.10.5-1build11:1.8.7-r2-1
 None known
libsixel
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.10.5-11.10.5-1build1
 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2025-61146 is a medium vulnerability (CVSS 4.0) in Saitoha Libsixel, published February 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.

References

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