CVE-2024-41996

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Summary

CVECVE-2024-41996
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-08-26 06:15:04 UTC
Updated2026-05-12 12:17:03 UTC
DescriptionValidating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.006280000 probability, percentile 0.703590000 (date 2026-05-12)

Problem Types: CWE-295 | n/a | CWE-295 CWE-295 Improper Certificate Validation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified
ADP Diffie-hellman Key Exchange Project Diffie-hellman Key Exchange affected * custom Not specified
ADP Siemens RUGGEDCOM RST2428P affected V3.3 custom Not specified
ADP Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 Family affected V3.3 custom Not specified
ADP Siemens SCALANCE XCH328 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM324 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM328 affected V3.3 custom Not specified
ADP Siemens SCALANCE XCM332 affected V3.3 custom Not specified
ADP Siemens SCALANCE XRH334 24 V DC 8xFO CC affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230 V AC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230 V AC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 230V AC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24 V DC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24 V DC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 24V DC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230 V AC 12xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230 V AC 8xFO affected V3.3 custom Not specified
ADP Siemens SCALANCE XRM334 2x230V AC 2x10G 24xSFP 8xSFP affected V3.3 custom Not specified
ADP Siemens SIDIS Prime affected V4.0.800 custom Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
cert-portal.siemens.com/productcert/html/ssa-089022.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
dheatattack.gitlab.io/details [email protected] dheatattack.gitlab.io
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1 [email protected] gist.github.com
dheatattack.gitlab.io/faq [email protected] dheatattack.gitlab.io
cert-portal.siemens.com/productcert/html/ssa-485750.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
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