CVE-2025-8735 Details
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.
A null pointer dereference vulnerability has been identified in GNU Cflow versions through 1.8. The issue arises in the Lexer component, specifically within the 'yylex' function of 'c.c'. This vulnerability occurs when the program processes malformed C source files, leading to a segmentation fault. The root cause is the 'yylex' function attempting to dereference a null pointer, a critical error that can be exploited locally.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Aug 8, 2025CISA-ADP
Assessed Aug 8, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.openwall.com/lists/oss-security/2025/10/27/12 | CVE | |
| https://drive.google.com/file/d/1Q_rDQSEl3cBu6SUbfqr9pV9cHgvKcXFI/view?usp=drive_link | [email protected] | ExploitPartial ContentPermission Required |
| https://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00000.html | [email protected] | ExploitMailing ListTechnical AnalysisVendor |
| https://vuldb.com/?ctiid.319231 | [email protected] | AdvisoryExploitPartial ContentRemedy |
| https://vuldb.com/?id.319231 | [email protected] | AdvisoryExploitVendor |
| https://vuldb.com/?submit.622328 | [email protected] | ExploitTechnical Analysis |
| https://www.gnu.org/ | [email protected] | Vendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| GNU cflow | <= 1.8 |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Oct 28, 2025 | CVE Modified | CVE |
| Aug 8, 2025 | New CVE Received | [email protected] |