What is CVE-2025-7054?

CVE-2025-7054 is a medium-severity vulnerability in Cloudflare Quiche, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2025-08-07.

How severe is CVE-2025-7054?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2025-7054 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Cloudflare Quiche

CVE-2025-7054

Cloudflare quiche was discovered to be vulnerable to an infinite loop when sending packets containing RETIRE_CONNECTION_ID frames. QUIC connections possess a set of connection identifiers (IDs); see Section 5.1 of RFC 9000 https://datatr…

EPSS: 0.004 (27.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Cloudflare Quiche — versions 0.15.0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cna@cloudflare.com (Third Party Advisory)

Frequently asked questions

What is CVE-2025-7054?: CVE-2025-7054 is a medium-severity vulnerability in Cloudflare Quiche, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2025-08-07.
How severe is CVE-2025-7054?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-7054 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.