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Vulnerability details: VCID-b14x-4mtq-5fc7
Vulnerability ID VCID-b14x-4mtq-5fc7
Aliases CVE-2022-49737
Summary In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.
Status Published
Exploitability 0.5
Weighted Severity 5.4
Risk 2.7
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-413 Improper Resource Locking
System Score Found at
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
epss 0.00199 https://api.first.org/data/v1/epss?cve=CVE-2022-49737
cvssv3.1 7.7 https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
ssvc Track https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
cvssv3.1 7.7 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
ssvc Track https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
cvssv3.1 4.7 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 7.7 https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0
ssvc Track https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0
cvssv3.1 7.7 https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
ssvc Track https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-49737
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-49737
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1260 https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5 https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
bugreport.cgi?bug=1081338 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
dc7cb45482cea6ccec22d117ca0b489500b4d0a0 https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H Found at https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-17T16:07:10Z/ Found at https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H Found at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-17T16:07:10Z/ Found at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H Found at https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-17T16:07:10Z/ Found at https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H Found at https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:P/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-17T16:07:10Z/ Found at https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
Exploit Prediction Scoring System (EPSS)
Percentile 0.42046
EPSS Score 0.00199
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T16:36:11.360040+00:00 Debian Oval Importer Import https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 38.0.0