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Public proof of conceptFix available

CVE-2025-61915

A public proof of concept exists; no exploitation attested.

  • Published2025-11-29
  • Fixed in2.4.15
  • WeaknessCWE-124 · CWE-129

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which runs as root will parse the new config and cause an out-of-bound write. This issue has been patched in version 2.4.15.

Timeline

dates in UTC
  1. 2025-11-2903:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-61915?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-61915?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Openprinting cupsversion to verify
BranchAffectedFixed in
2.4< 2.4.152.4.15

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • cupsAlmaLinux:9all versions · fixed in 1:2.3.3op2-34.el9_7.2and 7 other packages
  • cupsAlmaLinux:8all versions · fixed in 1:2.2.6-66.el8_10and 6 other packages
  • cups-filesystemAlmaLinux:10all versions · fixed in 1:2.4.10-12.el10_1.2

Vendor advisories

  • CVE-2025-61915 Red Hat Product Security14 products fixed · 15 known affected

    CUPS: Local denial-of-service via cupsd.conf update and related issues

    cups as a component of Red Hat Enterprise Linux 6 · cups-devel as a component of Red Hat Enterprise Linux 6 · cups-libs as a component of Red Hat Enterprise Linux 6 · +12 more

  • RHSA-2026:0596 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: cups security update

  • RHSA-2026:0464 Red Hat Product Security5 products fixed

    Red Hat Security Advisory: cups security update

  • RHSA-2026:0312 Red Hat Product Security4 products fixed

    Red Hat Security Advisory: cups security update

Full record on NVD

Fix

  1. Update Openprinting cups to 2.4.15
  2. Vendor fix Red Hat Product Security RHSA-2026:0596 · 5 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  3. Workaround from the vendor Red Hat Product Security RHSA-2026:0596 · 88 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
  4. No fix planned, says the vendor Red Hat Product Security CVE-2025-61915 · 15 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionpoc2025-12-03
  • OpenCVESSVC decisionpoc—
  • CNACVSS 3.16read 2026-10-23
  • NVDCVSS 3.16.7read 2026-10-23
  • CNAweakness (CWE)CWE-124, CWE-129read 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-10-24
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published
2025-11-29
Last Modified
2026-10-07
NVD status
Analyzed

Frequently asked questions

What is CVE-2025-61915?

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which runs as root will parse the new config and cause an out-of-bound write. This issue has been patched in version 2.4.15.

Is CVE-2025-61915 actively exploited?

A proof-of-concept exploit exists for CVE-2025-61915, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2025-61915?

CVE-2025-61915 has a CVSS v3 base score of 6.7 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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