AEGLIX vulnerability intelligence
CVE-2026-55453
LOW · CVSS 3.3 · Analyzed
Published: 2026-10-15 · Updated: 2026-10-20 · Source: NVD
Stored catalog record
Source record retrieved 2026-10-28T10:22:44.591723+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.
Vulnerability overview
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to 2.4.20, the backend/ipp.c quote_string() function preserves carriage-return and line-feed characters in a remote printer-controlled marker-message before report_attr() writes the value to the scheduler status stream. The scheduler can parse an injected newline as a separate PPD: control line and persist an attacker-selected PPD keyword. The reporter demonstrated that a later print job on a Foomatic-backed queue could consume an injected FoomaticRIPCommandLine value and execute in the filter context as lp. This issue is fixed in version 2.4.20.
Patch review priority
Assess exposure and vendor guidance
- No higher-priority signal is available in the current stored evidence.
FIRST EPSS: 0.19% · percentile 9.1 · score date 2026-10-27.
EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗
Severity and scoring
- CVSS score
- 3.3 · LOW
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- Weaknesses
- CWE-74, CWE-77, CWE-78
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:*
Before (exclusive): 2.4.20
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://github.com/OpenPrinting/cups/commit/806e1b483096c51d59432468f4afdd7387d81dd7
Patch
- https://github.com/OpenPrinting/cups/commit/d41cf0616688721e9d435d54118c4c8a36ed596a
Patch
- https://github.com/OpenPrinting/cups/releases/tag/v2.4.20
Release Notes
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-7hqf-mfhx-7r3v
Exploit · Patch · Vendor Advisory