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CVE detail

CVE-2002-20001

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.

CVSS 7.5 · HighBuzz score 4.01 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 4.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 0.0 · diversity 0.0 · KEV 0.0 · OTX 0.0 · PoC 4.0
Mention score
0.0
0 evidence mentions in the snapshot
Diversity score
0.0
0 sources across 0 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
4.0
1 repos · best confidence 0.80
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

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Peak daily
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Evidence

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    Exploit code

    Public exploit repository references

    Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

    1 repository references · best confidence 0.80 · max 0 stars
    • dheatattack/dheaterMedium confidence
      gitlabDiscovery source unavailable0 starsDiscovered Jul 9, 2026, 6:51 PM

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