Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Affects Red Hat cupsSource GCVE Database
Not known to be exploited · CVSS 4.3 Medium.
Data as of 28 Oct 2026, 05:12 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10cupspkg:deb/ubuntu/cups?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTScupspkg:deb/ubuntu/cups?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTScupspkg:deb/ubuntu/cups?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTScupspkg:deb/ubuntu/cups?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTScupspkg:deb/ubuntu/cups?arch=source&distro=esm-infra/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTScupspkg:deb/ubuntu/cups?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A security update is available from Red Hat for affected Hardened Images RPMs, including cups version 2.4.19-4.1.hum1 and related packages. Users should apply these official updates to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Description
A heap out-of-bounds read vulnerability exists in the cupsUTF32ToUTF8() function of the CUPS printing system due to missing source-length bounds during SNMP supply-description parsing. This vulnerability is tracked as CVE-2026-87875 and affects multiple versions of CUPS included in Red Hat Hardened Images. A security update has been issued by Red Hat to address this issue.
References
- access.redhat.com/errata/RHSA-2026:66600 (opens in a new tab)
- images.redhat.com (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-87875 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_66600.json (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2530994 (opens in a new tab)
- github.com/OpenPrinting/cups/commit/0c6842fc615e8afa284136a092da8178abf5f142 (opens in a new tab)
- github.com/OpenPrinting/cups/commit/2b1dc178a2d2325135b855142e384f4e8c42d8e4 (opens in a new tab)
- github.com/OpenPrinting/cups/security/advisories/GHSA-559w-7676-3xrq (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-87875.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)
- suse.com/support/security/rating/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11785-1.json (opens in a new tab)
- suse.com/security/cve/CVE-2026-87875/ (opens in a new tab)
- ftp.suse.com/pub/projects/security/csaf/suse-su-2026_23925-1.json (opens in a new tab)
- suse.com/support/update/announcement/2026/suse-su-202623925-1/ (opens in a new tab)
- bugzilla.suse.com/1279945 (opens in a new tab)
- ubuntu.com/security/CVE-2026-87875 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-87875 (opens in a new tab)