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Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension

🗓️ 06 Aug 2025 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

Integer overflow in the big requests extension affects the Xorg X11 server and TigerVNC.

Related
Detection
ReporterTitlePublishedViews
Family
FreeBSD		xorg server -- Multiple vulnerabilities
17 Jun 202500:00
–freebsd
IBM Security Bulletins		Security Bulletin: AIX/VIOS is vulnerable to a denial of service (CVE-2025-49175, CVE-2025-49178) and an integer overflow (CVE-2025-49176, CVE-2025-49179)
13 Oct 202516:02
–ibm
Tenable Nessus		AIX : Multiple Vulnerabilities (IJ55665)
13 Oct 202500:00
–nessus
Tenable Nessus		AIX : Multiple Vulnerabilities (IJ55695)
13 Oct 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : tigervnc, tigervnc-icons, tigervnc-license (ALAS2023-2025-1060)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2025-1061)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2025-1062)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : tigervnc (ALAS-2025-2917)
10 Jul 202500:00
–nessus
Tenable Nessus		Amazon Linux 2 : xorg-x11-server (ALAS-2025-2918)
10 Jul 202500:00
–nessus
Tenable Nessus		AlmaLinux 9 : xorg-x11-server and xorg-x11-server-Xwayland (ALSA-2025:9303)
30 Jun 202500:00
–nessus
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Vulners
Node
microsoftcbl2_xorg-x11-server_1.20.10-16Range<1.20.10-16

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18 Feb 2026 10:32Current
7High risk
Vulners AI Score7
CVSS 3.16.6 - 7.3
EPSS0.00267
SSVC
xorg x11 serverbig requests extensioninteger overflowtigervnc
1