CVE-2025-8735

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.3% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-08-08 18:32Z1 YR AGO

Last updated

2025-10-28 00:43Z10 MO AGO

Reserved

2025-08-08

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

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

Weaknesses

• CWE-404Improper Resource Shutdown or ReleaseClass
• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

61fe8fac66112f60d83b99fdc1d5861b5f718b18ea7e5c72414d8fb175c31c64

• vuldb.comVDB-319231 | GNU cflow Lexer c.c yylex null pointer dereferencehttps://vuldb.com/?id.319231vdb-entrytechnical-description
• vuldb.comVDB-319231 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.319231signaturepermissions-required
• vuldb.comSubmit #622328 | GNU cflow cflow cflow (GNU cflow) the newest master (0a19319e282506ff88d19e630380cd5069e893ed ) in cflow.git - GNU cflow Null Pointer Dereferencehttps://vuldb.com/?submit.622328third-party-advisory
• lists.gnu.orghttps://lists.gnu.org/archive/html/bug-cflow/2025-07/msg00000.htmlrelated
• drive.google.comhttps://drive.google.com/file/d/1Q_rDQSEl3cBu6SUbfqr9pV9cHgvKcXFI/view?usp=drive_linkexploit
• www.gnu.orghttps://www.gnu.org/product
• www.openwall.comhttps://www.openwall.com/lists/oss-security/2025/10/27/12