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CVE-2025-30347

20
FAUCET Score

CVE-2025-30347 is a high-severity out-of-bounds read vulnerability affecting Varnish Enterprise versions prior to 6.0.13r13. This flaw allows unauthenticated remote attackers to obtain sensitive information by crafting specific range requests against ephemeral MSE4 stevedore objects. While the CVSS score is 7.5 (High), indicating a significant risk, there is currently no evidence of active exploitation, public exploit code, or community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.0.13CPE matchmatch criteria
cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r10:*:*:*:*:*:*
6.0.13CPE matchmatch criteria
cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r11:*:*:*:*:*:*
6.0.13CPE matchmatch criteria
cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r12:*:*:*:*:*:*
6.0.13CPE matchmatch criteria
cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r2:*:*:*:*:*:*
6.0.13CPE matchmatch criteria
cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.0MEDIUM

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 Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
24.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 7th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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