CVE-2026-95511

✕ Withdrawn — historical dataHIGHPre-NVD 8.2Trending — 4 sources updated this weekElevated
8.2CVSS
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A privilege escalation vulnerability was found in CUPS when used with the cups-filters serial backend. A local user who is a member of the lpadmin group can configure a printer that uses a privileged serial backend. The CUPS scheduler does not restrict the path component of non-file device URIs, so the root-privileged backend can write attacker-controlled print data to an arbitrary file. This can be used to change security-sensitive CUPS configuration and ultimately achieve root code execution. Exploitation requires local lpadmin group membership and a serial backend binary installed with root-only permissions.

CVSS v3
8.2
EchelonGraph score
Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
EG Score
—
EG Risk
—
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 22, 2026

Advisory Details (3)

Auto-updated Sep 22, 2026
Patch available. Sources: redhat.
generic

pocs/cups/cups2root at main · v12-security/pocs · GitHub

https://github.com/v12-security/pocs/tree/main/cups/cups2root
redhat

2537749 – (CVE-2026-95511) CVE-2026-95511 cups: cups-filters: cups-filters: lpadmin can escalate to root via privileged serial backend (cups2root)

https://bugzilla.redhat.com/show_bug.cgi?id=2537749
redhat Patch Available

CVE-2026-95511 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8, 9, and 10, and Fedora, ship cups-filters with the serial backend and are affected. Products that s

https://access.redhat.com/security/cve/CVE-2026-95511

Vendor Advisories for CVE-2026-95511(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 14× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-23 03:10 UTCEG score recompute▼ 8.20
  2. 2026-09-23 03:10 UTCGHSA enrichment
  3. 2026-09-22 16:01 UTCEPSS rescore
  4. 2026-09-22 14:20 UTCEG score recompute
  5. 2026-09-22 14:20 UTCGHSA enrichment
  6. 2026-09-22 13:27 UTCEG score recompute
  7. 2026-09-22 13:27 UTCGHSA enrichment
  8. 2026-09-22 11:35 UTCEG score recompute
  9. 2026-09-22 11:35 UTCGHSA enrichment
  10. 2026-09-22 10:56 UTCGHSA enrichment
  11. 2026-09-22 10:27 UTCEG score recompute
  12. 2026-09-22 10:26 UTCGHSA enrichment
  13. 2026-09-22 08:49 UTCEG score recompute
  14. 2026-09-22 08:45 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-95511?
CVE-2026-95511 is a high vulnerability published on September 22, 2026. A privilege escalation vulnerability was found in CUPS when used with the cups-filters serial backend. A local user who is a member of the lpadmin group can configure a printer that uses a privileged serial backend. The CUPS scheduler does not restrict the path component of non-file device URIs, so…
When was CVE-2026-95511 disclosed?
CVE-2026-95511 was first published in the National Vulnerability Database on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-95511 actively exploited?
CVE-2026-95511 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.1% of all scored CVEs.
What is the CVSS score of CVE-2026-95511?
CVE-2026-95511 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-95511?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-95511, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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