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Fencer Vulns
medium 4.4

CVE-2024-6876 json

Out-of-bounds read in OSCAT-Library

published 2024-09-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-47868

cvss
4.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

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.

Patch / fix

  • oscat.de OSCAT Basic Library 3.3.5, 335
  • CODESYS OSCAT Basic Library <3.3.5.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-326-02 updated cvss 5.1

OSCAT Basic Library

  • CODESYS GmbH CODESYS OSCAT Basic Library 3.3.5.0 CODESYS GmbH oscat.de OSCAT Basic Library <=3.3.5, <=335
    affected: mitigation “CODESYS GmbH recommends users update OSCAT Basic Library to address the security vulnerability:” certvde.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

Affected products

  • oscat.de OSCAT Basic Library
  • CODESYS OSCAT Basic Library

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.