The Diffie-Hellman Key Agreement Protocol allows remote attackers (from the client side) to send arbitrary numbers that are actually not public keys, and trigger expensive server-side DHE modular-exponentiation calculations, aka a D(HE)at or D(HE)ater attack. The client needs very little CPU resources and network bandwidth. The attack may be more disruptive in cases where a client can require a server to select its largest supported key size. 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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.1468.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

Configuration 1 [-]

cpe:2.3:a:balasys:dheater:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND
cpe:2.3:o:siemens:scalance_w1750d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:scalance_w1750d:-:*:*:*:*:*:*:*

Configuration 3 [-]

OR cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*
cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:*:*:*

Configuration 4 [-]

OR cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_carrier-grade_nat:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_carrier-grade_nat:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_service_proxy:1.6.0:*:*:*:*:kubernetes:*:*
cpe:2.3:a:f5:big-ip_ssl_orchestrator:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ssl_orchestrator:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-iq_centralized_management:7.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:traffix_signaling_delivery_controller:5.2.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:1.8.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.5.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.5.1:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.8.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.8.1:*:*:*:*:*:*:*

Configuration 5 [-]

AND
OR cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:*
cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:*
cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:*
cpe:2.3:o:hpe:arubaos-cx:*:*:*:*:*:*:*:*
OR cpe:2.3:h:hpe:aruba_cx_4100i:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6100:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6200f:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6200m:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6300f:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6300m:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6405:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_6410:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8320:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8325-32c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8325-48y8c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-12c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-16y2c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-24xf2c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-32y4c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-48xt4c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8360-48y6c:-:*:*:*:*:*:*:*
cpe:2.3:h:hpe:aruba_cx_8400:-:*:*:*:*:*:*:*

Configuration 6 [-]

OR cpe:2.3:a:stormshield:stormshield_management_center:*:*:*:*:*:*:*:*
cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*
cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*

No data.

No data.

Project Subscriptions

Vendors Products
Balasys Subscribe
Dheater Subscribe
F5 Subscribe
Big-ip Access Policy Manager Subscribe
Big-ip Advanced Firewall Manager Subscribe
Big-ip Advanced Web Application Firewall Subscribe
Big-ip Analytics Subscribe
Big-ip Application Acceleration Manager Subscribe
Big-ip Application Security Manager Subscribe
Big-ip Application Visibility And Reporting Subscribe
Big-ip Carrier-grade Nat Subscribe
Big-ip Ddos Hybrid Defender Subscribe
Big-ip Domain Name System Subscribe
Big-ip Edge Gateway Subscribe
Big-ip Fraud Protection Service Subscribe
Big-ip Global Traffic Manager Subscribe
Big-ip Link Controller Subscribe
Big-ip Local Traffic Manager Subscribe
Big-ip Policy Enforcement Manager Subscribe
Big-ip Service Proxy Subscribe
Big-ip Ssl Orchestrator Subscribe
Big-ip Webaccelerator Subscribe
Big-ip Websafe Subscribe
Big-iq Centralized Management Subscribe
F5os-a Subscribe
F5os-c Subscribe
Traffix Signaling Delivery Controller Subscribe
Hpe Subscribe
Aruba Cx 4100i Subscribe
Aruba Cx 6100 Subscribe
Aruba Cx 6200f Subscribe
Aruba Cx 6200m Subscribe
Aruba Cx 6300f Subscribe
Aruba Cx 6300m Subscribe
Aruba Cx 6405 Subscribe
Aruba Cx 6410 Subscribe
Aruba Cx 8320 Subscribe
Aruba Cx 8325-32c Subscribe
Aruba Cx 8325-48y8c Subscribe
Aruba Cx 8360-12c Subscribe
Aruba Cx 8360-16y2c Subscribe
Aruba Cx 8360-24xf2c Subscribe
Aruba Cx 8360-32y4c Subscribe
Aruba Cx 8360-48xt4c Subscribe
Aruba Cx 8360-48y6c Subscribe
Aruba Cx 8400 Subscribe
Arubaos-cx Subscribe
Siemens Subscribe
Scalance W1750d Subscribe
Scalance W1750d Firmware Subscribe
Stormshield Subscribe
Stormshield Management Center Subscribe
Stormshield Network Security Subscribe
Suse Subscribe
Linux Enterprise Server Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert-portal.siemens.com/productcert/pdf/ssa-506569.pdf cve-icon cve-icon
https://dheatattack.com cve-icon cve-icon
https://dheatattack.gitlab.io/ cve-icon cve-icon
https://github.com/Balasys/dheater cve-icon cve-icon
https://github.com/mozilla/ssl-config-generator/issues/162 cve-icon cve-icon
https://gitlab.com/dheatattack/dheater cve-icon cve-icon
https://ieeexplore.ieee.org/document/10374117 cve-icon cve-icon
https://support.f5.com/csp/article/K83120834 cve-icon cve-icon
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2022-004.txt cve-icon cve-icon
https://www.openssl.org/blog/blog/2022/10/21/tls-groups-configuration/ cve-icon cve-icon
https://www.reddit.com/r/netsec/comments/qdoosy/server_overload_by_enforcing_dhe_key_exchange/ cve-icon cve-icon
https://www.researchgate.net/profile/Anton-Stiglic-2/publication/2401745_Security_Issues_in_the_Diffie-Hellman_Key_Agreement_Protocol cve-icon cve-icon
https://www.suse.com/support/kb/doc/?id=000020510 cve-icon cve-icon
History

Fri, 22 Aug 2025 10:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:f5:f5os-a:1.3.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:1.3.1:*:*:*:*:*:*:*		 cpe:2.3:a:f5:big-ip_advanced_firewall_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_advanced_web_application_firewall:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_analytics:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_acceleration_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_security_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_application_visibility_and_reporting:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_carrier-grade_nat:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ddos_hybrid_defender:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_domain_name_system:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_fraud_protection_service:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_global_traffic_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_link_controller:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_local_traffic_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_ssl_orchestrator:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_webaccelerator:17.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_websafe:17.5.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:1.8.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.8.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.8.1:*:*:*:*:*:*:*

Tue, 15 Apr 2025 14:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:f5:f5os-a:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:f5os-a:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:f5os-c:*:*:*:*:*:*:*:*
cpe:2.3:a:f5:f5os-c:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:f5os-c:1.5.1:*:*:*:*:*:*:*		 cpe:2.3:o:f5:f5os-a:1.3.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-a:1.3.1:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:*:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.5.0:*:*:*:*:*:*:*
cpe:2.3:o:f5:f5os-c:1.5.1:*:*:*:*:*:*:*

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2025-02-13T16:27:06.803Z

Reserved: 2021-11-11T00:00:00.000Z

Link: CVE-2002-20001

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-11-11T19:15:07.380

Modified: 2025-08-22T10:33:16.873

Link: CVE-2002-20001

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses