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CVE-2026-87875 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq	CISA-ADP
https://access.redhat.com/errata/RHSA-2026:66600	[email protected]
https://access.redhat.com/security/cve/CVE-2026-87875	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2530994	[email protected]
https://github.com/OpenPrinting/cups/commit/0c6842fc615e8afa284136a092da8178abf5f142	[email protected]
https://github.com/OpenPrinting/cups/commit/2b1dc178a2d2325135b855142e384f4e8c42d8e4	[email protected]
https://github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq	[email protected]

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

4 change records found show changes

Date	Action	Recorded By
Sep 12, 2026	CVE Modified	[email protected]
Sep 9, 2026	CVE Modified	[email protected]
Sep 9, 2026	CVE Modified	CISA-ADP
Sep 9, 2026	New CVE Received	[email protected]