CVE-2025-61143: libtiff NULL Pointer Dereference
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-61143DEBIAN-CVE-2025-61143
Published 23-02-2026Last modified 25-02-2026
Vulnerability summary
CVE-2025-61143 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in libtiff. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 1.6% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.12%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 23-02-2026PublishedVulnerability first disclosed.
- 25-02-2026Last modifiedVulnerability information updated.
Description
libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.12%
Chance of exploitation in the next 30 days
Percentile
2%
Versus all other CVEs
30-day change
+0.01 pp
From 0.11% on 19-09-2026
19-09-202619-10-2026
EPSS score0.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu5 products
- gdalAll versions (No fix recorded)
- neuronAll versions (No fix recorded)
- qtwebengine-opensource-srcAll versions (No fix recorded)
- texmakerAll versions (No fix recorded)
- tiff< 4.0.3-7ubuntu0.11+esm17 | < 4.0.6-1ubuntu0.8+esm20 | < 4.0.9-5ubuntu0.10+esm10 | < 4.1.0+git191117-2ubuntu0.20.04.14+esm3 | < 4.3.0-6ubuntu0.13 | < 4.5.1+git230720-4ubuntu2.5 | < 4.7.0-3ubuntu3.1 | < 4.7.0-3ubuntu4 | < 4.7.0-3ubuntu5
Debian1 product
- tiffAll versions (No fix recorded) | < 4.7.1-1
Libtiff1 product
- libtiff< 4.7.1
3 vendors · 7 products
References
9 links- gitlab.com/libtiff/libtiff/-/issues/737Issue Tracking
