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CVE-2024-5000

CODESYS: Incorrect calculation of buffer size can cause DoS on CODESYS OPC UA products

High7.5EPSS 0.57%
Published
Updated
Reserved
Assigned by
CERTVDE

Description

An unauthenticated remote attacker can use a malicious OPC UA client to send a crafted request to affected CODESYS products which can cause a DoS due to incorrect calculation of buffer size.

Scores

CVSS scores of CVE-2024-5000, by who scored it
Scored byCVSSScoreVector
CERTVDECNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Deferred3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.57% · top 53% of all CVEs (4 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .