Description
A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service.
References10
- access.redhat.com/errata/RHSA-2025:10258
- access.redhat.com/errata/RHSA-2025:10342
- access.redhat.com/errata/RHSA-2025:10343
- access.redhat.com/errata/RHSA-2025:10344
- access.redhat.com/errata/RHSA-2025:10346
- access.redhat.com/errata/RHSA-2025:10347
- access.redhat.com/errata/RHSA-2025:10348
- access.redhat.com/errata/RHSA-2025:10349
- access.redhat.com/errata/RHSA-2025:10350
- access.redhat.com/errata/RHSA-2025:10351
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 16 · as of 7 November 2026
- CWE
- CWE-667
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.