CVE-2025-8735 | THREATINT

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.

In GNU cflow bis 1.8 wurde eine problematische Schwachstelle entdeckt. Das betrifft die Funktion yylex der Datei c.c der Komponente Lexer. Dank der Manipulation mit unbekannten Daten kann eine null pointer dereference-Schwachstelle ausgenutzt werden. Der Angriff muss lokal angegangen werden. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-08-08 | Published 2025-08-08 | Updated 2025-08-08 | Assigner VulDB

MEDIUM: 4.8CVSS: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

LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

NULL Pointer Dereference

Denial of Service

Product status

1.0

affected

1.1

affected

1.2

affected

1.3

affected

1.4

affected

1.5

affected

1.6

affected

1.7

affected

1.8

affected

Timeline

2025-08-08:	Advisory disclosed
2025-08-08:	VulDB entry created
2025-08-08:	VulDB entry last update

References

vuldb.com/?id.319231 (VDB-319231 | GNU cflow Lexer c.c yylex null pointer dereference) vdb-entry technical-description

vuldb.com/?ctiid.319231 (VDB-319231 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.622328 (Submit #622328 | GNU cflow cflow cflow (GNU cflow) the newest master (0a19319e282506ff88d19e630380cd5069e893ed ) in cflow.git - GNU cflow Null Pointer Dereference) third-party-advisory

lists.gnu.org/archive/html/bug-cflow/2025-07/msg00000.html related

drive.google.com/...6SUbfqr9pV9cHgvKcXFI/view?usp=drive_link exploit

www.gnu.org/ product

cve.org (CVE-2025-8735)

nvd.nist.gov (CVE-2025-8735)

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