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.
References (7)
Core 7
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.319231
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.319231
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.622328
Various Sources related
https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00000.html
Various Sources exploit
https://drive.google.com/file/d/1Q_rDQSEl3cBu6SUbfqr9pV9cHgvKcXFI/view?usp=drive_link
Various Sources product
https://www.gnu.org/
Scores
CVSS v3
3.3
EPSS
0.0013
EPSS Percentile
3.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-404
CWE-476
Status
published
Products (9)
GNU/cflow
1.0
GNU/cflow
1.1
GNU/cflow
1.2
GNU/cflow
1.3
GNU/cflow
1.4
GNU/cflow
1.5
GNU/cflow
1.6
GNU/cflow
1.7
GNU/cflow
1.8
Published
Aug 08, 2025
Tracked Since
Feb 18, 2026