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Cloudflare

Records70All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical5CVSS 9.0–10.0
CVSS high44CVSS 7.0–8.9

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Cloudflare records in CISA KEV

No Cloudflare vulnerabilities are listed in CISA KEV.

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Records

7 records in Quiche · all components

Priority MEDIUM 44

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames.

CVSS 4.0HIGH 8.7 Network No auth No interaction EPSS 0.00449 Published 2025-08-07 Fixed in 0.24.5 CWE-835
Priority MEDIUM 41

Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00982 Published 2025-06-18 Fixed in 0.24.4 CWE-770
Priority MEDIUM 40

Summary Cloudflare quiche's HTTP/3 layer was discovered to be vulnerable to resource exhaustion (i.e., memory) by means of specially crafted HTTP/3 frames.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00532 Published 2026-07-14 Fixed in 0.29.3 CWE-400
Priority LOW 35

Cloudflare Quiche (through version 0.19.1/0.20.0) was affected by an unlimited resource allocation vulnerability causing rapid increase of memory usage of the system running quiche server or client.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.0111 Published 2024-03-12 Fixed in <0.20.1, 0.19.2 +1 CWE-400
Priority LOW 32

Impact Cloudflare quiche was discovered to be vulnerable to incorrect congestion window growth, which could cause it to send data at a rate faster than the path might actually support.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00864 Published 2025-06-18 Fixed in 0.24.4 CWE-770
Priority LOW 25

quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption.

CVSS 3.1MEDIUM 5.3 Network No auth No interaction EPSS 0.00763 Published 2023-12-12 Fixed in 0.19.1 CWE-400
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