Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-87875
Red Hat Red Hat Hardened Images — Cups: openprinting cups: heap out-of-bounds read in cupsutf32toutf8() via missing source-length bound
AV AC PR UI S C I A CVSS EPSS %ile KEV
A L N N U L N N 4.3 .0039 31.0 —
AFFECTED
Product Versions Fixed
Red Hat Hardened Images unspecified 2.4.19-4.1.hum1
Red Hat Enterprise Linux 10 unspecified —
Red Hat Enterprise Linux 6 unspecified —
Red Hat Enterprise Linux 7 unspecified —
Red Hat Enterprise Linux 8 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat Enterprise Linux 9 unspecified —
Red Hat OpenShift Container Platform 4 unspecified —
TIMELINE
Sep 9 Reserved by redhat
Sep 9 Published (CNA: redhat)
Sep 11 PATCH SHIPPED — CVE-2026-87875 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 2.4.19-4.1.hum1.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
|---|
| September 9, 2026 | Reserved | Reserved by redhat |
| September 9, 2026 | Published | Published (CNA: redhat) |
| September 11, 2026 | PATCH SHIPPED | PATCH SHIPPED — CVE-2026-87875 (Red Hat Hardened Images). Fixed in Red Hat Hardened Images 2.4.19-4.1.hum1. |
Affected
Affected products and packages — 8 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| Red Hat | Red Hat Hardened Images | — | — | 2.4.19-4.1.hum1 |
| Red Hat | Red Hat Enterprise Linux 10 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | — |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-87875 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
