HOMEVULNERABILITIESCVE-2025-6693
HIGH

CVE-2025-6693

CWE-119Published: June 26, 2025· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2025-6693 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

rt-thread1 product(s)
rt-thread
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://vuldb.com/?id.313959
ADVISORYhttps://vuldb.com/?submit.595813
ADVISORYhttps://vuldb.com/?submit.595814
ADVISORYhttps://vuldb.com/?submit.595827
ADVISORYhttps://vuldb.com/?submit.595869
ADVISORYhttps://vuldb.com/?submit.595870
ADVISORYhttps://vuldb.com/?submit.595871

All References (9)

→
https://github.com/RT-Thread/rt-thread/issues/10387Exploit · Issue Tracking
→
https://vuldb.com/?ctiid.313959Permissions Required · VDB Entry
→
https://vuldb.com/?id.313959Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595813Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595814Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595827Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595869Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595870Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.595871Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2025-6693
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedJun 26, 2025

Related CVEs (CWE-119)

CVE-2009-4240
10.0
CVE-2009-3848
10.0
CVE-2009-3854
10.0
CVE-2008-3684
10.0
CVE-2009-2281
10.0
CVE-2009-4176
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-6693 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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