Off-by-one error in the ippReadIO function in cups/ipp.c in CUPS 1.3.3 allows remote attackers to cause a denial of service (crash) via a crafted (1) textWithLanguage or (2) nameWithLanguage Internet Printing Protocol (IPP) tag, leading to a stack-based buffer overflow.
Conclusion & alert: CVE-2007-4351 is rated High Risk (67.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 7.38%, 94th 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 | 2026-06-15 | 23.65% | 7.38% | -16.28% |
| 2 | 2025-07-01 | 26.30% | 23.65% | -2.64% |
| 3 | 2025-03-30 | — | 26.30% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
medium | CVE-2007-4351 medium priority: Debian including 1 source packages (cups), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-4351 |
gentoo
|
high | CVE-2007-4351: 1 GLSA(s) (200711-16), 1 atom(s) (net-print/cups); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-4351 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2007-4351 |
suse
|
critical | CVE-2007-4351 severity critical: SUSE including 46 source package names (cups-1.3.9-8.30.1, cups-1.3.9-8.44.1, …), 46 product×package rows across 10 product lines (SUSE Linux Enterprise Module for Legacy 12, SUSE Linux Enterprise Server 11 SP1, … (10 product lines)): Fixed 42, Known Not Affected 4. | https://www.suse.com/security/cve/CVE-2007-4351/ |
ubuntu
|
low | CVE-2007-4351 low priority: Ubuntu including 1 source packages (cupsys), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): released 5. | https://ubuntu.com/security/CVE-2007-4351 |
Vulnerable. This issue affected the CUPS packages in Red Hat Enterprise Linux 5. This issue also affected the versions of CUPS packages in Red Hat Enterprise Linux 3 and 4, but exploitation would only lead to a possible denial of service. Updates are available from https://rhn.redhat.com/cve/CVE-2007-4351.html