CVE-2025-6516 Vulnerability Analysis & Exploit Details

CVE-2025-6516
Vulnerability Scoring

5.3
/10
Significant Risk

Security assessments indicate that CVE-2025-6516 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2025-6516 Details

Status: Analyzed

Last updated: 🕛 26 Jun 2025, 12:25 UTC
Originally published on: 🕔 23 Jun 2025, 17:15 UTC

Time between publication and last update: 2 days

CVSS Release: version 3

CVSS3 Source

cna@vuldb.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2025-6516 Vulnerability Summary

CVE-2025-6516: A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Assessing the Risk of CVE-2025-6516

Access Complexity Graph

The exploitability of CVE-2025-6516 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-2025-6516

CVE-2025-6516 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

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-2025-6516, 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-2025-6516, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: Low
    CVE-2025-6516 could lead to minor leaks of non-critical information without major privacy breaches.
  • Integrity: Low
    Exploiting CVE-2025-6516 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2025-6516 may slightly degrade system performance without fully affecting service availability.

CVE-2025-6516 References

External References

CWE Common Weakness Enumeration

CWE-787

Vulnerable Configurations

  • cpe:2.3:a:hdfgroup:hdf5:-:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:-:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.4:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.4:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.4.5:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.4.5:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.4:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.4:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.5:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.5:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.6:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.6:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.7:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.7:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.8:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.8:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.9:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.9:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.6.10:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.6.10:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.4:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.4:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.5:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.5:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.6:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.6:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.7:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.7:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.8:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.8:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.9:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.9:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.10:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.10:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.11:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.11:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.12:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.12:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.13:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.13:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.14:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.14:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.15:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.15:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.16:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.16:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.17:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.17:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.18:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.18:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.19:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.19:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.8.20:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.8.20:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.10.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.10.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.10.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.10.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.10.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.10.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.10.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.10.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.10.4:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.10.4:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.12.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.12.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.12.1:-:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.12.1:-:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.12.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.12.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.12.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.12.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.12.2-3:rc1:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.12.2-3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:-:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:-:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc5:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc5:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc6:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.0:rc6:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.1-1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.1-1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.13.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.13.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.0:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.0:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.1-2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.1-2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.3:-:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.3:-:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.4:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.4:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.4.1:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.4.1:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.4.2:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.4.2:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.4.3:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.4.3:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.5:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.5:*:*:*:*:*:*:*
  • cpe:2.3:a:hdfgroup:hdf5:1.14.6:*:*:*:*:*:*:*
    cpe:2.3:a:hdfgroup:hdf5:1.14.6:*:*:*:*:*:*:*

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