CVE-2025-26596
March 10, 2025, 1:15 p.m.
7.8
High
Description
A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Tigervnc |
|
|
| X.org |
|
|
| Redhat |
|
|
Weaknesses
CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
*CPE(s)
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | tigervnc | tigervnc | - | / | / | / | / | / | / | / |
| a | x.org | x_server | - | / | / | / | / | / | / | / |
| a | x.org | xwayland | - | / | / | / | / | / | / | / |
| o | redhat | enterprise_linux | 7.0 | / | / | / | / | / | / | / |
| o | redhat | enterprise_linux | 8.0 | / | / | / | / | / | / | / |
| o | redhat | enterprise_linux | 9.0 | / | / | / | / | / | / | / |
Tags
CVSS Score
CVSS Data
- Attack Vector: LOCAL
- Attack Complexity: LOW
- Privileges Required: LOW
- Scope: UNCHANGED
- Confidentiality Impact: HIGH
- Integrity Impact: HIGH
- Availability Impact: HIGH
View Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Date
- Published: Feb. 25, 2025, 4:15 p.m.
- Last Modified: March 10, 2025, 1:15 p.m.
Status : Modified
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
secalert@redhat.com
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.