Display-server crash via empty animated-cursor array
Published Jun 17, 2025 · Updated Jun 30, 2026
Out-of-bounds read in Xwayland before 24.1.8 allows local users to crash the X server through a malformed animated-cursor request. The animated-cursor handler accepts a zero-cursor list, assumes element zero exists, and reads beyond the empty array. An X client connection and low privileges are required; exploitation interrupts the display server and can expose limited uninitialized memory.
Summary
What happened
Out-of-bounds read in Xwayland before 24.1.8 allows local users to crash the X server through a malformed animated-cursor request. The animated-cursor handler accepts a zero-cursor list, assumes element zero exists, and reads beyond the empty array. An X client connection and low privileges are required; exploitation interrupts the display server and can expose limited uninitialized memory.
The record
- CVE
- CVE-2025-49175
- Published
- Jun 17, 2025
- Updated
- Jun 30, 2026
- Vendor
- 389 Directory Server
- Product
- Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
- Classifications
- CWE-125, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 17, 2025CVE publishedPublication date reported by the CVE source.
- Jun 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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