CVE-2024-41996
HIGH EPSS 61.0%
Published Aug 26, 20241y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
Published Aug 26, 2024 1y ago
Last Modified Jun 17, 2026 2w ago
Description
Validating 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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
61.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-295
References 6
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-089022.html
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-485750.html
- dheatattack.gitlab.io https://dheatattack.gitlab.io/details/
- dheatattack.gitlab.io https://dheatattack.gitlab.io/faq/
- gist.github.com https://gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.