Information disclosure in GNOME Gdkpixbuf
CVE-2025-6199
A flaw was found in the GIF parser of GdkPixbuf’s LZW decoder. When an invalid symbol is encountered during decompression, the decoder sets the reported output size to the full buffer length rather than the actual number of written bytes. This logic error results in uninitialized sections of the buffer being included in the output, potentially leaking arbitrary memory contents in the processed image.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.002 (10.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2025-6199 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108
- gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/257
Frequently asked questions
- What is CVE-2025-6199?
- CVE-2025-6199 is a low-severity vulnerability in GNOME Gdkpixbuf, classified under Information Disclosure. CVSS score: 3.3/10. Published 2025-06-17.
- How severe is CVE-2025-6199?
- Low severity. CVSS v3 base score is 3.3 out of 10.