Search CVE reports


Toggle filters

1 – 10 of 59 results


CVE-2026-34003

Medium priority
Needs evaluation

XKB Buffer overflow in CheckKeyTypes(). The function CheckKeyTypes() will loop over the client's request but won't perform any additional bound checking to ensure that the data read remains within the request bounds. As a result,...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xwayland Needs evaluation Needs evaluation
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2026-34002

Medium priority
Needs evaluation

XKB Out-of-bounds read in CheckModifierMap(). CheckModifierMap() reads from the wire in a loop without verifying that the data remains within the bounds of the client request. As a result, the total number of keys could exceed the...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xwayland Needs evaluation Needs evaluation
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2026-34001

Medium priority
Needs evaluation

XSYNC Use-after-free in miSyncTriggerFence(). When walking the list of fences to trigger, miSyncTriggerFence() may call TriggerFence() for the current trigger, which end up calling the function SyncAwaitTriggerFired()....

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xwayland Needs evaluation Needs evaluation
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2026-34000

Medium priority
Needs evaluation

XKB Out-of-bounds Read in CheckSetGeom(). Each key alias entry contains two key names (the alias and the real key name). The code in CheckSetGeom() does its bounds checking using only the first name, allowing XkbAddGeomKeyAlias to...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xwayland Needs evaluation Needs evaluation
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2026-33999

Medium priority
Needs evaluation

XKB Integer Underflow in XkbSetCompatMap(). If a "compat" buffer was previously truncated, there will be unused space left in the buffer. The code in XkbSetCompatMap() will use that space, but fails to update the number of valid...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Needs evaluation Needs evaluation Needs evaluation Needs evaluation
xwayland Needs evaluation Needs evaluation
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2025-62231

Medium priority

Some fixes available 8 of 14

A flaw was identified in the X.Org X server’s X Keyboard (Xkb) extension where improper bounds checking in the XkbSetCompatMap() function can cause an unsigned short overflow. If an attacker sends specially crafted input data, the...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Fixed Fixed Needs evaluation Needs evaluation
xwayland Fixed Fixed
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2025-62230

Medium priority

Some fixes available 8 of 14

A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free...

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Fixed Fixed Needs evaluation Needs evaluation
xwayland Fixed Fixed
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2025-62229

Medium priority

Some fixes available 8 of 14

A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can leave dangling pointers that lead to a use-after-free condition....

7 affected packages

xorg, xorg-server, xwayland, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg Not affected Not affected Not affected Not affected
xorg-server Fixed Fixed Needs evaluation Needs evaluation
xwayland Fixed Fixed
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Needs evaluation
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2025-49180

Medium priority

Some fixes available 15 of 16

A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate.

7 affected packages

xorg-server, xwayland, xorg, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg-server Fixed Fixed Fixed Fixed
xwayland Fixed Fixed
xorg Not affected Not affected Not affected Not affected
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Fixed
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages

CVE-2025-49179

Medium priority

Some fixes available 15 of 16

A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

7 affected packages

xorg-server, xwayland, xorg, xorg-server-hwe-16.04, xorg-server-hwe-18.04...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
xorg-server Fixed Fixed Fixed Fixed
xwayland Fixed Fixed
xorg Not affected Not affected Not affected Not affected
xorg-server-hwe-16.04 Not in release Not in release
xorg-server-hwe-18.04 Not in release Not in release Fixed
xorg-hwe-16.04 Not in release Not in release
xorg-hwe-18.04 Not in release Not in release Not affected
Show all 7 packages Show less packages