CVE-2024-22588Public exploitNetwork attack vector

Connection disruption via retained Initial keys

Published May 24, 2024 · Updated Feb 13, 2025

Denial of service in Peter Doornbosch Kwik before 0.8.13 allows man-in-the-middle attackers to disrupt established QUIC connections. The handshake transition retains Initial decryption keys instead of calling ConnectionSecrets.discardKeys after Handshake keys become available. An attacker able to sniff the initial exchange can derive its unauthenticated Initial key and send a forged CONNECTION_CLOSE frame that terminates that connection.

CVSS severity6.5
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Peter Doornbosch Kwik before 0.8.13 allows man-in-the-middle attackers to disrupt established QUIC connections. The handshake transition retains Initial decryption keys instead of calling ConnectionSecrets.discardKeys after Handshake keys become available. An attacker able to sniff the initial exchange can derive its unauthenticated Initial key and send a forged CONNECTION_CLOSE frame that terminates that connection.

The record

CVE
CVE-2024-22588
Published
May 24, 2024
Updated
Feb 13, 2025
Vendor
Peter Doornbosch
Product
Kwik
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.8.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Peter Doornbosch · Kwikversion=0 <0.8.13

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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