cmsxform.c in LittleCMS (aka lcms or liblcms) 1.18, as used in OpenJDK and other products, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted image that triggers execution of incorrect code for "transformations of monochrome profiles."
Conclusion & alert: CVE-2009-0793 is rated Moderate Risk (49.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 10.61%, 93th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
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 | 2026-04-12 | 10.74% | 10.61% | -0.13% |
| 2 | 2026-02-03 | 10.61% | 10.74% | +0.13% |
| 3 | 2025-07-13 | — | 10.61% | — |
Full EPSS history (19 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2009-0793: 1 GLSA(s) (200904-19), 1 atom(s) (media-libs/lcms); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-0793 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2009-0793 |
ubuntu
|
low | CVE-2009-0793 low priority: Ubuntu including 2 source packages (lcms, openjdk-6), 18 status rows across 9 suites (dapper, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, upstream): ignored 6, released 6, not-affected 3, DNE 2, needs-triage 1. | https://ubuntu.com/security/CVE-2009-0793 |
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-0793 The Red Hat Security Response Team has rated this issue as having low security impact, a future lcms packages update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/