CVE-2025-30347 — MEDIUM (4.0)

Vulnerability Description

Varnish Enterprise before 6.0.13r13 allows remote attackers to obtain sensitive information via an out-of-bounds read for range requests on ephemeral MSE4 stevedore objects.

CVSS Score

4.0

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Varnish-Software	Varnish Enterprise	6.0.13

Related Weaknesses (CWE)

CWE-125

References

https://docs.varnish-software.com/security/VEV00001/MitigationVendor Advisory

FAQ

What is CVE-2025-30347?

CVE-2025-30347 is a vulnerability with a CVSS score of 4.0 (MEDIUM). Varnish Enterprise before 6.0.13r13 allows remote attackers to obtain sensitive information via an out-of-bounds read for range requests on ephemeral MSE4 stevedore objects.

How severe is CVE-2025-30347?

CVE-2025-30347 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-30347?

Check the references section above for vendor advisories and patch information. Affected products include: Varnish-Software Varnish Enterprise.