CVE-2025-8735
GNU cflow Lexer c.c yylex null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Aug 8, 2025
- Updated
- Oct 28, 2025
- Reserved
- Aug 8, 2025
Description
A vulnerability classified as problematic was found in GNU cflow up to 1.8. Affected by this vulnerability is the function yylex of the file c.c of the component Lexer. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
cflowGNU |
|
References
- VDB-319231 | GNU cflow Lexer c.c yylex null pointer dereferencevdb-entrytechnical-description
- VDB-319231 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #622328 | GNU cflow cflow cflow (GNU cflow) the newest master (0a19319e282506ff88d19e630380cd5069e893ed ) in cflow.git - GNU cflow Null Pointer Dereferencethird-party-advisory
- https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00000.htmlrelated
- https://drive.google.com/file/d/1Q_rDQSEl3cBu6SUbfqr9pV9cHgvKcXFI/view?usp=drive_linkexploit
- https://www.gnu.org/product
- https://www.openwall.com/lists/oss-security/2025/10/27/12
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