CVE-2024-1410Network attack vector

Service interruption via unbounded retired-CID queue

Published Mar 12, 2024 · Updated Aug 1, 2024

Resource exhaustion in Cloudflare quiche 0.15.0 through 0.19.1 and 0.20.0 allows remote attackers to interrupt QUIC service. ConnectionIdentifiers queues sequence numbers for RETIRE_CONNECTION_ID frames in retire_dcid_seqs without bounding the retired-CID set. Exploitation requires sustained NEW_CONNECTION_ID input plus constrained outbound congestion so retirements accumulate faster than transmission, causing memory exhaustion.

CVSS severity3.7
Low
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Cloudflare quiche 0.15.0 through 0.19.1 and 0.20.0 allows remote attackers to interrupt QUIC service. ConnectionIdentifiers queues sequence numbers for RETIRE_CONNECTION_ID frames in retire_dcid_seqs without bounding the retired-CID set. Exploitation requires sustained NEW_CONNECTION_ID input plus constrained outbound congestion so retirements accumulate faster than transmission, causing memory exhaustion.

The record

CVE
CVE-2024-1410
Published
Mar 12, 2024
Updated
Aug 1, 2024
Vendor
Cloudflare
Product
quiche
Classifications
CWE-400, CAPEC-130, CAPEC-272, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record 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=0.15.0 <<0.19.2
  2. Affected versionversion=0.20.0 <<0.20.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Cloudflare · quicheversion=0.15.0 <<0.19.2; version=0.20.0 <<0.20.1

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
3.7CloudflareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CAPEC-130Excessive Allocation
CAPEC-272Protocol Manipulation
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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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