Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-295.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:* | not specified by CISA-ADP | — | Diffie-hellman Key Exchange Project |
- cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:* Versions not specified by CISA-ADP — ·Diffie-hellman Key Exchange Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Logging Subsystem for Red Hat OpenShift | Affected | No fix planned: Will not fix |
| Red Hat 3scale API Management Platform 2 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 10 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Core Services | Affected | No fix planned: Will not fix |
| Red Hat OpenShift AI (RHOAI) | Affected | — |
| Red Hat OpenShift Container Platform 4 | Affected | No fix planned: Will not fix |
| Red Hat Trusted Profile Analyzer | Affected | No fix planned: Will not fix |
Not affected: 1 product
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-02 Threatist record created from CVE-2024-41996
- 2026-10-03 Alias added: GHSA-h964-f4gx-gw3x
- 2026-10-23 Affected versions changed · Red Hat
- 2026-10-23 CVSS score added · Red Hat
- 2026-11-06 Affected versions changed · Red Hat
References
Sources
- CVE-2024-41996 · CVE Program
- CVE-2024-41996 · NVD
- FIRST EPSS
- GHSA-h964-f4gx-gw3x · GitHub Advisory Database · CC BY 4.0
- CVE-2024-41996 · Red Hat security data · CC BY 4.0
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