CVE Explorer
CVE-2026-39314
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in _ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password-supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes validation, is cast to size_t (wrapping to ~2^64), and is used as the length argument to mem
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"cups","vendor":"OpenPrinting","versions":[{"status":"affected","version":"<= 2.4.16"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:5051e6f52ed5e50935293dd85a7ff71cd614322845ebb29e9661365c814681f1 · sha256:13946d8078bed1e5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:5051e6f52ed5e50935293dd85a7ff71cd614322845ebb29e9661365c814681f1 · sha256:13946d8078bed1e5… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-191","description":"CWE-191: Integer Underflow (Wrap or Wraparound)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:5051e6f52ed5e50935293dd85a7ff71cd614322845ebb29e9661365c814681f1 · sha256:13946d8078bed1e5… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/OpenPrinting/cups/security/advisories/GHSA-pp8w-2g52-7vj7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OpenPrinting/cups/security/advisories/GHSA-pp8w-2g52-7vj7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:5051e6f52ed5e50935293dd85a7ff71cd614322845ebb29e9661365c814681f1 · sha256:13946d8078bed1e5… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.