CVE-2024-31484

HIGH

7.8

CVSS Score

Published: May 14, 2024 at 10:02 AM UTC

Updated: June 17, 2026 at 07:28 AM UTC

6 products affected across 1 vendorCPCI85CPC80ETA4

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Severity

HIGH7.8

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

A vulnerability has been identified in CPC80 Central Processing/Communication (All versions < V16.41), CPCI85 Central Processing/Communication (All versions < V5.30), CPCX26 Central Processing/Communication (All versions < V06.02), ETA4 Ethernet Interface IEC60870-5-104 (All versions < V10.46), ETA5 Ethernet Int. 1x100TX IEC61850 Ed.2 (All versions < V03.27), PCCX26 Ax 1703 PE, Contr, Communication Element (All versions < V06.05). The affected devices contain an improper null termination vulnerability while parsing a specific HTTP header. This could allow an attacker to execute code in the context of the current process or lead to denial of service condition.

Affected

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

CPC80 · Siemens

90%

v < 16.41v < V16.4116.41

Affected range stops below 16.41, so it looks safe — our inference, not a vendor statement

Affected range stops below V16.41, so it looks safe — our inference, not a vendor statement

CPCI85 · Siemens

90%

v < 5.30v < V5.305.30

Affected range stops below 5.30, so it looks safe — our inference, not a vendor statement

Affected range stops below V5.30, so it looks safe — our inference, not a vendor statement

CPCX26 · Siemens

60%

v < V06.02

Affected range stops below V06.02, so it looks safe — our inference, not a vendor statement

ETA4 · Siemens

60%

v < V10.46

Affected range stops below V10.46, so it looks safe — our inference, not a vendor statement

ETA5 · Siemens

60%

v < V03.27

Affected range stops below V03.27, so it looks safe — our inference, not a vendor statement

PCCX26 · Siemens

60%

v < V06.05

Affected range stops below V06.05, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

Source: [email protected]

http://seclists.org/fulldisclosure/2024/Jul/4

Source: [email protected]

https://cert-portal.siemens.com/productcert/html/ssa-620338.html

Source: [email protected]

https://cert-portal.siemens.com/productcert/html/ssa-871704.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://seclists.org/fulldisclosure/2024/Nov/18

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGHsiemens

Vector?

Quick Info

StatusDEFERRED

CWE

CWE-170

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