CVE-2025-49176

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Source
https://cve.org/CVERecord?id=CVE-2025-49176
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49176.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-49176
Downstream
Related
Published
2025-06-17T14:49:49.143Z
Modified
2026-05-18T05:57:31.042787685Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H CVSS Calculator
Summary
Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension
Details

A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.

Database specific 
{
    "cna_assigner": "redhat",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49176.json",
    "cwe_ids": [
        "CWE-190"
    ]
}
References

Affected packages

Git / gitlab.freedesktop.org/xorg/xserver

Affected ranges

Type
GIT
Repo
https://gitlab.freedesktop.org/xorg/xserver
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2c5e87e3dfecbd60bcad5b74cad2cdcf0a992b57

Affected versions

Other
DRI-XFree86-4_3_99_12-merge
DRI-trunk-20040613
DRI-trunk-20040721
DRM-1_0_5
DRM-20040613
DRM-20040721
DRM-20050615
DRM-20051017
DRM-2_0_0
Domain-base
Domain-sync1
Domain-sync2
Domain-sync3
Domain-sync4
MODULAR_COPY
PRE_xf86-4_3_0_1
XACE-SELINUX-MERGE
XORG-6_7_99_1
XORG-6_7_99_2
XORG-6_7_99_901
XORG-6_7_99_902
XORG-6_7_99_903
XORG-6_7_99_904
XORG-6_8_0
XORG-6_8_99_1
XORG-6_8_99_10
XORG-6_8_99_11
XORG-6_8_99_12
XORG-6_8_99_13
XORG-6_8_99_14
XORG-6_8_99_15
XORG-6_8_99_16
XORG-6_8_99_2
XORG-6_8_99_3
XORG-6_8_99_4
XORG-6_8_99_5
XORG-6_8_99_6
XORG-6_8_99_7
XORG-6_8_99_8
XORG-6_8_99_9
XORG-6_8_99_900
XORG-6_8_99_901
XORG-6_8_99_902
XORG-6_8_99_903
XORG-6_99_99_900
XORG-6_99_99_901
XORG-6_99_99_902
XORG-6_99_99_903
XORG-6_99_99_904
XORG-7_0
XORG-7_0_99_901
XORG-MAIN
add-Xi
ah-20021030
ah-20021030-postdri
before-mesa-4_0-import
dhd-20010328
dhd-20010817
dhd-20020916
dri-0-1-branchpoint
dri-20020129-merge
dri-20020222-merge
kdrive-initial-import
keithp
lg3d-base
pre-R651-import
pre-xgldrop-merge
sco_port_update-base
xf-3_9_16Z
xf-3_9_16Za
xf-3_9_16d
xf-3_9_16e
xf-3_9_16f
xf-3_9_17
xf-3_9_17Z
xf-3_9_17a
xf-3_9_17b
xf-3_9_17c
xf-3_9_17d
xf-3_9_17e
xf-3_9_17f
xf-3_9_18
xf-3_9_18Z
xf-3_9_18Za
xf-3_9_18a
xf-3_9_18b
xf-4_0
xf-4_0-bindist
xf-4_0Z
xf-4_0_1
xf-4_0_1-bindist
xf-4_0_1Z
xf-4_0_1Za
xf-4_0_1Zb
xf-4_0_1Zc
xf-4_0_1a
xf-4_0_1b
xf-4_0_1c
xf-4_0_1d
xf-4_0_1e
xf-4_0_1f
xf-4_0_1g
xf-4_0_1h
xf-4_0_2
xf-4_0_2-bindist
xf-4_0_99_1
xf-4_0_99_2
xf-4_0_99_3
xf-4_0_99_900
xf-4_0a
xf-4_0b
xf-4_0c
xf-4_0d
xf-4_0e
xf-4_0f
xf-4_0g
xf-4_1_99_1
xf-4_1_99_2
xf-4_1_99_3
xf-4_1_99_4
xf-4_1_99_5
xf-4_1_99_6
xf-4_1_99_7
xf-4_2-bp
xf-4_2_0
xf-4_2_0-bindist
xf-4_2_0-bindist-1
xf-4_2_0_1
xf-4_2_1
xf-4_2_1_1
xf-4_2_99_1
xf-4_2_99_2
xf-4_2_99_3
xf-4_2_99_4
xf-4_2_99_901
xf-4_2_99_902
xf-4_3_0
xf-4_3_0_1
xf-4_3_99_1
xf-4_3_99_2
xf-4_3_99_3
xf-4_3_99_4
xf-4_3_99_5
xf-4_3_99_6
xf86-012804-2330
xf86-4_3_0_1
xf86-4_3_99_16
xf86-4_3_99_901
xf86-4_3_99_902
xf86-4_3_99_903
xf86-4_3_99_903_special
xf86-4_4_0
xf86-4_4_99_1
xfixes_2_branchpoint
xorg-server-0_99_1
xorg-server-1_0_99_1
xorg-server-1_0_99_2
xorg-server-1_0_99_901
xorg-server-1_1_99_1
xorg-server-1_1_99_2
xorg-server-1.*
xorg-server-1.1.99.3
xorg-server-1.10.0
xorg-server-1.10.99.901
xorg-server-1.10.99.902
xorg-server-1.11.0
xorg-server-1.11.99.1
xorg-server-1.11.99.901
xorg-server-1.11.99.902
xorg-server-1.11.99.903
xorg-server-1.12.0
xorg-server-1.12.99.901
xorg-server-1.12.99.902
xorg-server-1.12.99.903
xorg-server-1.12.99.904
xorg-server-1.12.99.905
xorg-server-1.13.0
xorg-server-1.13.99.901
xorg-server-1.13.99.902
xorg-server-1.14.0
xorg-server-1.14.99.1
xorg-server-1.14.99.2
xorg-server-1.14.99.3
xorg-server-1.14.99.901
xorg-server-1.14.99.902
xorg-server-1.14.99.903
xorg-server-1.14.99.904
xorg-server-1.14.99.905
xorg-server-1.15.0
xorg-server-1.15.99.901
xorg-server-1.15.99.902
xorg-server-1.15.99.903
xorg-server-1.15.99.904
xorg-server-1.16.0
xorg-server-1.16.99.901
xorg-server-1.16.99.902
xorg-server-1.17.0
xorg-server-1.17.99.901
xorg-server-1.17.99.902
xorg-server-1.18.0
xorg-server-1.18.99.2
xorg-server-1.18.99.901
xorg-server-1.18.99.902
xorg-server-1.19.0
xorg-server-1.19.99.901
xorg-server-1.19.99.902
xorg-server-1.19.99.903
xorg-server-1.19.99.904
xorg-server-1.19.99.905
xorg-server-1.20.0
xorg-server-1.5.99.1
xorg-server-1.6.99.900
xorg-server-1.6.99.901
xorg-server-1.7.99.1
xorg-server-1.7.99.2
xorg-server-1.7.99.901
xorg-server-1.7.99.902
xorg-server-1.8.0
xorg-server-1.8.99.901
xorg-server-1.8.99.902
xorg-server-1.8.99.903
xorg-server-1.8.99.904
xorg-server-1.8.99.905
xorg-server-1.8.99.906
xorg-server-1.9.0
xorg-server-1.9.99.901
xorg-server-1.9.99.902
xorg-server-1.9.99.903
xorg-server-21.*
xorg-server-21.0.99.1
xwayland-24.*
xwayland-24.0.99.901
xwayland-24.0.99.902
xwayland-24.1.0
xwayland-24.1.1
xwayland-24.1.2
xwayland-24.1.3
xwayland-24.1.4
xwayland-24.1.5
xwayland-24.1.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-49176.json"