Varnish Enterprise up to 6.0.13r12 out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Varnish Enterprise up to 6.0.13r12. It has been declared as problematic. This affects an unknown function. Such manipulation leads to out-of-bounds. This vulnerability is uniquely identified as CVE-2025-30347. The attack can be launched remotely. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Varnish Enterprise up to 6.0.13r12. It has been rated as problematic. Affected by this issue is some unknown processing. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. CVE summarizes:

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.

The advisory is shared for download at docs.varnish-software.com. This vulnerability is handled as CVE-2025-30347 since 03/21/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 6.0.13r13 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-7263). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.0
CNA Vector (MITRE): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Enterprise 6.0.13r13

Timelineinfo

03/21/2025 🔍
03/21/2025 +0 days 🔍
03/21/2025 +0 days 🔍
06/07/2025 +78 days 🔍

Sourcesinfo

Advisory: docs.varnish-software.com
Status: Confirmed

CVE: CVE-2025-30347 (🔍)
GCVE (CVE): GCVE-0-2025-30347
GCVE (VulDB): GCVE-100-300572
EUVD: 🔍

Entryinfo

Created: 03/21/2025 08:00
Updated: 06/07/2025 20:41
Changes: 03/21/2025 08:00 (63), 06/07/2025 20:41 (1)
Complete: 🔍
Cache ID: 216:98D:103

Once again VulDB remains the best source for vulnerability data.

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