CVE record · CVE-2025-49178

Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore

CVSS 5.5 MediumEPSS 0.0025 · 15th percentile

Published by the CVE Program (CNA: redhat) at 17 Jun 2025, 14:54 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
X.Org	xwayland Package name: xwayland https://gitlab.freedesktop.org/xorg/xserver	affected before 24.1.7 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:24.1.5-4.el10_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.1.0-25.el6_10.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7.7 Advanced Update Support Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.8.0-17.el7_7.1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.4-32.el7_9 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Extended Lifecycle Support Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.8.0-36.el7_9.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-26.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-18.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.15.0-7.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.9.0-15.el8_2.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.6-4.el8_2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.10-2.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.11.0-8.el8_4.13 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.10-2.el8_4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.11.0-8.el8_4.13 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-6.el8_6.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-2.el8_6.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-5.el8_6.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-6.el8_6.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-2.el8_6.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-6.el8_6.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-2.el8_6.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-5.el8_6.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-6.el8_6.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-2.el8_6.4 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-5.el8_6.3 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-16.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-11.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-16.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-15.el8_8.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-11.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-16.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.12.0-15.el8_8.14 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-11.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-31.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:23.2.7-4.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.14.1-8.el9_6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: xorg-x11-server-Xwayland https://access.redhat.com/downloads/content/package-browser/	unaffected 0:21.1.3-3.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: xorg-x11-server https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.20.11-11.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: tigervnc https://access.redhat.com/downloads/content/package-browser/	unaffected 0:1.11.0-22.el9_0.15 to before * rpm Other versions: affected

And 7 more products. The full list is on the CVE record.

Identifiers: CVE-2025-49178
CNA: redhat
Weakness (CWE): CWE-667
Tags: X.Org xwayland
Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION
Red Hat Enterprise Linux 7.7 Advanced Update Support
Red Hat Enterprise Linux 7 Extended Lifecycle Support
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.2 Advanced Update Support
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
CWE-667
Published: 17 Jun 2025
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.5	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0025, the 15th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

17 Jun 2025, 14:54 UTC Confirmed by the CVE List
17 Jun 2025, 15:15 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2025:10258 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10342 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10343 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10344 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10346 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10347 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10348 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10349 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10350 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10351 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10352 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10355 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10356 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10360 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10370 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10374 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10375 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10376 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10377 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10378 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10381 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:10410 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9303 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9304 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9305 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9306 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9392 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:9964 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-49178 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2369977 issue-trackingredhat

And 2 more on the CVE record.

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.