CVE-2025-26598 is an out-of-bounds write vulnerability in X.Org and Xwayland, affecting products like Red Hat and TigerVNC. The flaw stems from the GetBarrierDevice() function incorrectly returning the last list element instead of NULL when a device ID is not found, leading to memory access issues. With a CVSS score of 7.8 (HIGH), this vulnerability has a local attack vector, low attack complexity, and can lead to high impacts on confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:tigervnc:tigervnc:-:*:*:*:*:*:*:* | ||
< 21.1.16CPE matchmatch criteria | cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:* | ||
< 24.1.6CPE matchmatch criteria | cpe:2.3:a:x.org:xwayland:*:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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