CVE-2026-2543 Vulnerability Analysis & Exploit Details

CVE-2026-2543
Vulnerability Scoring

2.7
/10
Low Risk

Security experts classify CVE-2026-2543 as a minor vulnerability with limited consequences.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level 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-2026-2543 Details

Status: Received on 16 Feb 2026, 07:17 UTC

Published on: 16 Feb 2026, 07:17 UTC

CVSS Release: version 3

CVSS3 Source

cna@vuldb.com

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2026-2543 Vulnerability Summary

CVE-2026-2543: A vulnerability was identified in vichan-devel vichan up to 5.1.5. This vulnerability affects unknown code of the file inc/mod/pages.php of the component Password Change Handler. The manipulation of the argument Password leads to unverified password change. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Assessing the Risk of CVE-2026-2543

Access Complexity Graph

The exploitability of CVE-2026-2543 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-2026-2543

The exploitability of CVE-2026-2543 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

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-2026-2543, 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-2026-2543, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2026-2543 has no significant impact on data confidentiality.
  • Integrity: Low
    Exploiting CVE-2026-2543 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-2543 does not impact system availability.

CVE-2026-2543 References

External References

CWE Common Weakness Enumeration

CWE-640

CAPEC Common Attack Pattern Enumeration and Classification

  • Password Recovery Exploitation CAPEC-50 An attacker may take advantage of the application feature to help users recover their forgotten passwords in order to gain access into the system with the same privileges as the original user. Generally password recovery schemes tend to be weak and insecure.

Protect Your Infrastructure against CVE-2026-2543: Combat Critical CVE Threats

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