libtiff up to v4.7.1 was discovered to contain a NULL pointer dereference via the component libtiff/tif_open.c.
Conclusion & alert: CVE-2025-61143 is rated Low Risk (22.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.11%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.02% | 0.11% | +0.10% |
| 2 | 2026-02-24 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2025-61143 unimportant priority: Debian including 1 source packages (tiff), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. | https://security-tracker.debian.org/tracker/CVE-2025-61143 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-61143 |
suse
|
low | CVE-2025-61143 severity low: SUSE including 13 source package names (1.1.2-2.20:libtiff5-4.0.9-150000.45.63.1, libtiff-devel, …), 35 product×package rows across 16 product lines (Container private-registry/harbor-portal, SUSE Linux Enterprise Micro 5.2, … (16 product lines)): Known Not Affected 18, Fixed 17. | https://www.suse.com/security/cve/CVE-2025-61143/ |
ubuntu
|
low | CVE-2025-61143 low priority: Ubuntu including 5 source packages (gdal, neuron, qtwebengine-opensource-src, texmaker, tiff), 35 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needs-triage 20, not-affected 8, released 7. | https://ubuntu.com/security/CVE-2025-61143 |
| URL | Tags |
|---|---|
| https://gist.github.com/optionGo/9c024cd8e7b131463b84dc60af9bb0aa | Third Party Advisory |
| https://gitlab.com/libtiff/libtiff/-/issues/737 | Issue Tracking |
| https://gitlab.com/libtiff/libtiff/-/merge_requests/755 | Issue Tracking |