Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2025-49177— Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension's xfixessetclientdisconnectmode

CVSS 6.1 · Medium EPSS 0.09% · P25
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-49177

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: data leak in xfixes extension's xfixessetclientdisconnectmode
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the XFIXES extension. The XFixesSetClientDisconnectMode handler does not validate the request length, allowing a client to read unintended memory from previous requests.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
X.org XFIXES 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
X.org XFIXES是X.org基金会的一款Windows系统扩展。 X.org XFIXES存在信息泄露漏洞，该漏洞源于请求长度未验证，可能导致读取意外内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
X.Orgxwayland 0 ~ 24.1.7 -
Red HatRed Hat Enterprise Linux 10 0:24.1.5-4.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red HatRed Hat Enterprise Linux 9 0:1.20.11-31.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9 0:23.2.7-4.el9_6 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support 0:22.1.9-6.el9_4 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9

II. Public POCs for CVE-2025-49177

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-49177

请登录查看更多情报信息。

Same Patch Batch · X.Org · 2025-06-17 · 6 CVEs total

CVE-2025-491807.8 HIGHXorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate
CVE-2025-491767.3 HIGHXorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests exte
CVE-2025-491797.3 HIGHXorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extensio
CVE-2025-491756.1 MEDIUMXorg-x11-server-xwayland: xorg-x11-server: tigervnc: out-of-bounds read in x rendering ext
CVE-2025-491785.5 MEDIUMXorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to byt

IV. Related Vulnerabilities

Same product: xwayland
Same vendor: X.Org
Same weakness: CWE-200

V. Comments for CVE-2025-49177

No comments yet

Leave a comment