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CVE-2024-6876

Out-of-bounds read in OSCAT-Library

MEDIUM
4.4
CVSS Score
Published: September 10, 2024 at 03:08 PM UTC
Updated: June 17, 2026 at 08:18 AM UTC
2 products affected across 2 vendorsOSCAT Basic LibraryOSCAT Basic Library

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

OSCAT Basic Library· Codesys
95%
v < 3.5.5.00.0.0 ≤ v < <3.3.5.00.0.0
Affected range stops below 3.5.5.0, so it looks safe — our inference, not a vendor statement
Affected range stops below <3.3.5.0, so it looks safe — our inference, not a vendor statement
OSCAT Basic Library· Oscat De
60%
v < 3.3.5v < 335
Affected range stops below 3.3.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Third Party Advisory
Source: [email protected]
https://certvde.com/en/advisories/VDE-2024-046/
Vendor Advisory
Source: [email protected]
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=18601&token=27389a52e058d95ff70b17a2370fedf07e073034&download=

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUMCERTVDE
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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