Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-95511 on 22 September 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2026-95511
Cups: cups-filters: cups-filters: lpadmin can escalate to root via privileged serial backend (cups2root)
Description
Rejected reason: Not a vulnerability. Creating a serial queue that overwrites cups-files.conf requires membership in SystemGroups (lpadmin), which is an opt-in cupsd admin role granted by a superuser. No privilege boundary is crossed.
INFO
Published Date :
Sept. 22, 2026, 9:17 a.m.
Last Modified :
Sept. 22, 2026, 3:17 p.m.
Remotely Exploit :
—
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-95511
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 53f830b8-0a3f-465b-8143-3b8a9948e749 | ||||
| CVSS 3.1 | HIGH | [email protected] |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-95511 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-95511 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Rejected by [email protected]
Sep. 22, 2026
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 22, 2026
Action Type Old Value New Value Changed Description 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. Rejected reason: Not a vulnerability. Creating a serial queue that overwrites cups-files.conf requires membership in SystemGroups (lpadmin), which is an opt-in cupsd admin role granted by a superuser. No privilege boundary is crossed. Removed CVSS V3.1 Red Hat, Inc.: AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Removed CWE Red Hat, Inc.: CWE-269 Added Affected Affected value removed. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/95xxx/CVE-2026-95511.json">CVE-2026-95511</a> Removed Reference Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-95511 Removed Reference Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2537749 Removed Reference Red Hat, Inc.: https://github.com/v12-security/pocs/tree/main/cups/cups2root Removed Reference CISA-ADP: https://github.com/v12-security/pocs/tree/main/cups/cups2root Removed SSVC {'id': 'CVE-2026-95511', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-22T13:09:29.372308Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 22, 2026
Action Type Old Value New Value Added Reference https://github.com/v12-security/pocs/tree/main/cups/cups2root Added SSVC {'id': 'CVE-2026-95511', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-22T13:09:29.372308Z'} -
CVE Modified by [email protected]
Sep. 22, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/95xxx/CVE-2026-95511.json">CVE-2026-95511</a> -
CVE Modified by [email protected]
Sep. 22, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/95xxx/CVE-2026-95511.json">CVE-2026-95511</a> -
New CVE Received by [email protected]
Sep. 22, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Added CWE CWE-269 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/95xxx/CVE-2026-95511.json">CVE-2026-95511</a> Added Reference https://access.redhat.com/security/cve/CVE-2026-95511 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2537749 Added Reference https://github.com/v12-security/pocs/tree/main/cups/cups2root