CVE-2024-56406 Vulnerability Analysis & Exploit Details

CVE-2024-56406
Vulnerability Scoring

8.4
/10
Severe Risk

Cybersecurity professionals consider CVE-2024-56406 an immediate threat requiring urgent 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: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2024-56406 Details

Status: Modified

Last updated: 🕑 16 Oct 2025, 14:15 UTC
Originally published on: 🕑 13 Apr 2025, 14:15 UTC

Time between publication and last update: 186 days

CVSS Release: version 3

CVSS3 Source

134c704f-9b21-4f2e-91b3-4a467353bcc0

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2024-56406 Vulnerability Summary

CVE-2024-56406: A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. When there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.    $ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped) It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.

Assessing the Risk of CVE-2024-56406

Access Complexity Graph

The exploitability of CVE-2024-56406 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-2024-56406

With low attack complexity and no required privileges, CVE-2024-56406 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

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-2024-56406, 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-2024-56406, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2024-56406 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2024-56406 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2024-56406 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2024-56406 References

External References

CWE Common Weakness Enumeration

CWE-787

Vulnerable Configurations

  • cpe:2.3:a:perl:perl:5.33.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.4:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.4:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.5:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.5:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.6:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.6:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.7:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.7:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.8:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.8:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.33.9:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.33.9:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.0:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.0:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.1:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.1:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.1:rc2:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.1:rc2:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.34.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.34.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.4:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.4:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.5:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.5:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.6:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.6:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.7:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.7:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.8:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.8:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.9:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.9:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.10:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.10:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.35.11:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.35.11:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.0:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.0:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.1:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.1:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.1:rc2:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.1:rc2:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.1:rc3:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.1:rc3:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.36.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.36.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.4:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.4:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.5:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.5:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.6:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.6:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.7:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.7:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.8:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.8:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.9:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.9:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.10:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.10:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.37.11:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.37.11:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.0:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.0:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.3:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.3:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.38.3:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.38.3:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.4:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.4:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.5:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.5:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.6:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.6:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.7:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.7:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.8:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.8:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.9:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.9:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.39.10:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.39.10:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.40.0:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.40.0:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.40.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.40.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.40.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.40.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.40.1:-:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.40.1:-:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.40.1:rc1:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.40.1:rc1:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.0:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.0:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.1:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.1:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.2:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.2:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.3:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.3:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.4:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.4:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.5:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.5:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.6:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.6:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.7:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.7:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.8:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.8:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.9:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.9:*:*:*:*:*:*:*
  • cpe:2.3:a:perl:perl:5.41.10:*:*:*:*:*:*:*
    cpe:2.3:a:perl:perl:5.41.10:*:*:*:*:*:*:*

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