CVE-2025-6693

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total 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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.7% of scored records. A rank, not a probability.

NVD base score

8.5 (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:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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

Analyzed. 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

2025-06-26 13:00Z1 YR AGO

Last updated

2025-06-26 13:21Z1 YR AGO

Reserved

2025-06-26

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass

Data version

5.1

Document digest

a27780c718600c25e15fa44ae84eec9202a64206d6967f3316ca3fbdaf7c5f9e

• vuldb.comVDB-313959 | RT-Thread device.c sys_device_write memory corruptionhttps://vuldb.com/?id.313959vdb-entrytechnical-description
• vuldb.comVDB-313959 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.313959signaturepermissions-required
• vuldb.comSubmit #595813 | RT-Thread 5.1.0 Code Injectionhttps://vuldb.com/?submit.595813third-party-advisory
• vuldb.comSubmit #595814 | RT-Thread 5.1.0 Insufficient Control Flow Management (Duplicate)https://vuldb.com/?submit.595814third-party-advisory
• vuldb.comSubmit #595827 | RT-Thread 5.1.0 Improper Handling of Parameters (Duplicate)https://vuldb.com/?submit.595827third-party-advisory
• vuldb.comSubmit #595869 | RT-Thread 5.1.0 Improper Handling of Parameters (Duplicate)https://vuldb.com/?submit.595869third-party-advisory
• vuldb.comSubmit #595870 | RT-Thread 5.1.0 Improper Handling of Parameters (Duplicate)https://vuldb.com/?submit.595870third-party-advisory
• vuldb.comSubmit #595871 | RT-Thread 5.1.0 Improper Handling of Parameters (Duplicate)https://vuldb.com/?submit.595871third-party-advisory
• github.comhttps://github.com/RT-Thread/rt-thread/issues/10387issue-tracking