CVE-2025-64524: openprinting cups-filters Heap-based Buffer Overflow
Vulnerability summary
CVE-2025-64524 is a medium (CVSS 5.5) Heap-based Buffer Overflow vulnerability in openprinting cups-filters. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 4 · Related 3Timeline
- 20-11-2025PublishedVulnerability first disclosed.
- 21-11-2025Last modifiedVulnerability information updated.
Description
cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. In versions 2.0.1 and prior, a heap-buffer-overflow vulnerability in the rastertopclx filter causes the program to crash with a segmentation fault when processing maliciously crafted input data. This issue can be exploited to trigger memory corruption, potentially leading to arbitrary code execution. This issue has been patched via commit 956283c.
CVSS metrics
4 scores · 4 sources · 1 version- CVE.orgCNA3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
0.00 pp
From 0.21% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundCups Filters
Maturity: poc
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Debian1 product
- cups-filters< 1.28.17-3+deb12u2 | < 1.28.17-6+deb13u1 | < 1.28.17-7
Mageia1 product
- cups-filters< 1.28.16-6.3.mga9
Openprinting1 product
- cups-filters≤ 2.0.1
Ubuntu1 product
- cups-filters< 1.8.3-2ubuntu3.5+esm3 | < 1.20.2-0ubuntu3.3+esm2 | < 1.27.4-1ubuntu0.4+esm1 | < 1.28.15-0ubuntu1.5 | < 2.0.0-0ubuntu4.1 | < 2.0.1-0ubuntu3.25.10.1 | < 2.0.1-0ubuntu3.25.04.1
4 vendors · 4 products
References
11 links- github.com/OpenPrinting/cups-filters/security/advisories/GHSA-rq44-2q5p-x3hvX Refsource CONFIRMREPORTExploitVendor Advisory
- github.com/OpenPrinting/cups-filters/commit/956283c74a34ae924266a2a63f8e5f529a1abd06X Refsource MISCPatch
