CVE-2026-87875
mediumpriority · track · 17EPSS 0.004 · 33 %ileDEUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-3282CUPS: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2026-09-09csaf · cert_bundDE
Ein Angreifer aus einem angrenzenden Netzwerk kann mehrere Schwachstellen in CUPS ausnutzen, um Informationen offenzulegen.
sources
Which sources assert this record, and when.
references (6) nvd
External citations — patches, advisories, analysis.
- https://access.redhat.com/errata/RHSA-2026:66600
- https://access.redhat.com/security/cve/CVE-2026-87875
- https://bugzilla.redhat.com/show_bug.cgi?id=2530994
- https://github.com/OpenPrinting/cups/commit/0c6842fc615e8afa284136a092da8178abf5f142
- https://github.com/OpenPrinting/cups/commit/2b1dc178a2d2325135b855142e384f4e8c42d8e4
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan