CVE-2025-30347 Vulnerability Analysis & Exploit Details

CVE-2025-30347
Vulnerability Scoring

4.0
/10
Moderate Risk

Exploiting CVE-2025-30347 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-30347 Details

Status: Analyzed

Last updated: 🕑 24 Mar 2025, 14:19 UTC
Originally published on: 🕖 21 Mar 2025, 07:15 UTC

Time between publication and last update: 3 days

CVSS Release: version 3

CVSS3 Source

cve@mitre.org

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2025-30347 Vulnerability Summary

CVE-2025-30347: 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.

Assessing the Risk of CVE-2025-30347

Access Complexity Graph

The exploitability of CVE-2025-30347 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2025-30347

CVE-2025-30347 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2025-30347, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2025-30347, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2025-30347 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: None
    CVE-2025-30347 poses no threat to data integrity.
  • Availability: None
    CVE-2025-30347 does not impact system availability.

CVE-2025-30347 References

External References

CWE Common Weakness Enumeration

CWE-125

CAPEC Common Attack Pattern Enumeration and Classification

  • Overread Buffers CAPEC-540 An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Vulnerable Configurations

  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r10:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r10:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r11:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r11:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r12:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r12:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r2:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r2:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r3:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r3:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r4:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r4:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r5:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r5:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r6:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r6:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r7:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r7:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r8:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r8:*:*:*:*:*:*
  • cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r9:*:*:*:*:*:*
    cpe:2.3:a:varnish-software:varnish_enterprise:6.0.13:r9:*:*:*:*:*:*

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