CVE-2025-47905

MEDIUM EPSS 21.7%

Published May 13, 20251y ago · Modified Jun 17, 20262w ago

5.4 CVSS 3.1

Medium

Published May 13, 2025 1y ago

Last Modified Jun 17, 2026 2w ago

Description

Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.

CVSS Details

Base Score

5.4

Exploitability

2.2

Impact

2.7

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction None

Scope Changed

Confidentiality Low

Integrity Low

Availability None

Threat Intelligence

EPSS Exploit Probability

21.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-444

References 3

openwall.com http://www.openwall.com/lists/oss-security/2025/05/15/2
lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html
varnish-cache.org https://varnish-cache.org/security/VSV00016.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.