CVE-2026-87875
mediumThe cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the end of the source buffer, resulting in a heap out-o…
The cupsUTF32ToUTF8() function in CUPS's cups/transcode.c lacks a source-length bound and can read past the end of the source buffer, resulting in a heap out-of-bounds read. This is reachable via SNMP supply-description parsing in backend/snmp-supplies.c with attacker-controlled content.
CVSS
4.3
4.3 (CVSS v3.1)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-09-09 17:17
Modified: 2026-10-21 21:20
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:66600 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-87875 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2530994 secalert@redhat.com
- https://github.com/OpenPrinting/cups/commit/0c6842fc615e8afa284136a092da8178abf5f142 secalert@redhat.com
- https://github.com/OpenPrinting/cups/commit/2b1dc178a2d2325135b855142e384f4e8c42d8e4 secalert@redhat.com
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq secalert@redhat.com
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗