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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

Fixed on upstream master branch with commit 0c6842f and for versions 2.4.x with commit 2b1dc17.

History

Thu, 10 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat hummingbird
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat hummingbird

Thu, 10 Sep 2026 10:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:hummingbird:1
Vendors & Products Redhat hummingbird

Thu, 10 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 09 Sep 2026 22:30:00 +0000


Wed, 09 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 09 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title Cups: openprinting cups: heap out-of-bounds read in cupsutf32toutf8() via missing source-length bound
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
Weaknesses CWE-125
CPEs cpe:/a:redhat:hummingbird:1
cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
Redhat openshift
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-09-10T10:38:31.044Z

Reserved: 2026-09-09T13:58:00.395Z

Link: CVE-2026-87875

cve-icon Vulnrichment

Updated: 2026-09-09T17:57:36.184Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-09T17:17:53.240

Modified: 2026-09-09T23:16:56.120

Link: CVE-2026-87875

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-09T00:00:00Z

Links: CVE-2026-87875 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T19:00:15Z

Weaknesses