Codesys
CVE-2024-6876
MEDIUM
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
Out-of-Bounds read vulnerability in OSCAT Basic Library allows an local, unprivileged attacker to access limited internal data of the PLC which may lead to a crash of the affected service.
AnalysisAI
Out-of-Bounds read vulnerability in OSCAT Basic Library allows an local, unprivileged attacker to access limited internal data of the PLC which may lead to a crash of the affected service. Rated medium severity (CVSS 4.4), this vulnerability is low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. Out-of-Bounds read vulnerability in OSCAT Basic Library allows an local, unprivileged attacker to access limited internal data of the PLC which may lead to a crash of the affected service. Affected products include: Codesys Oscat Basic Library.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.
CODESYS V3 web server before 3.5.15.40, as used in CODESYS Control runtime systems, has a buffer overflow. Rated critica
CODESYS 3 web server before 3.5.15.20, as distributed with CODESYS Control runtime systems, has a Buffer Overflow. Rated
Crafted web server requests can be utilised to read partial stack or heap memory or may trigger a denial-of- service con
An exploitable code execution vulnerability exists in the PLC_Task functionality of 3S-Smart Software Solutions GmbH COD
An unsafe deserialization vulnerability exists in the Engine.plugin ProfileInformation ProfileData functionality of CODE
An unsafe deserialization vulnerability exists in the ObjectManager.plugin Project.get_MissingTypes() functionality of C
An unsafe deserialization vulnerability exists in the ObjectManager.plugin ObjectStream.ProfileByteArray functionality o
A unsafe deserialization vulnerability exists in the ObjectManager.plugin ProfileInformation.ProfileData functionality o
A unsafe deserialization vulnerability exists in the ComponentModel ComponentManager.StartupCultureSettings functionalit
The Package Manager of CODESYS Development System 3 before 3.5.17.0 does not check the validity of packages before insta
In CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56 unauthenticated crafted invalid reque
In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests may cause a Null pointer dereference in the
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today