CVE-2025-8736

A vulnerability, which was classified as critical, has been found in GNU cflow up to 1.8. Affected by this issue is the function yylex of the file c.c of the component Lexer. The manipulation leads to buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

CVSS v3 5.3 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 3.1 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://drive.google.com/file/d/17lkJ5bSiQZoXLTg3bK-rGBt3kahN9Xse/view?usp=drive_link
https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00001.html
https://vuldb.com/?ctiid.319232
https://vuldb.com/?id.319232
https://vuldb.com/?submit.622329
https://www.gnu.org/

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Se ha detectado una vulnerabilidad, clasificada como crítica, en GNU cflow hasta la versión 1.8. Este problema afecta a la función yylex del archivo cc del componente Lexer. La manipulación provoca un desbordamiento de búfer. Se requiere acceso local para abordar este ataque. Se ha hecho público el exploit y puede que sea utilizado.

08 Aug 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-08 19:15

Updated : 2026-04-29 01:00

NVD link : CVE-2025-8736

Mitre link : CVE-2025-8736

CVE.ORG link : CVE-2025-8736

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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