CVE-2026-53701
MEDIUM EPSS 10.8%
Published Jun 11, 20262w ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Jun 11, 2026 2w ago
Last Modified Jun 17, 2026 2w ago
Description
An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
10.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-787 Out-of-bounds Write Memory Safety
References 2
- access.redhat.com https://access.redhat.com/security/cve/CVE-2026-53701
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2487611
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.