CVE-2025-30346
MEDIUMCVSS 4.8/10EPSS 0.29%
Last modified
CVE-2025-30346 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Varnish-Software | Varnish Enterprise | 6.0.11 | R1 |
| Varnish-Software | Varnish Enterprise | 6.0.12 | R1 |
| Varnish-Software | Varnish Enterprise | 6.0.13 | R1 |
| Varnish Cache Project | Varnish Cache | < 7.6.2 | — |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2025-30346?
Varnish Cache before 7.6.2 and Varnish Enterprise before 6.0.13r10 allow client-side desync via HTTP/1 requests.
How severe is CVE-2025-30346?
CVE-2025-30346 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2025-30346?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2025-30346?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST