How severe is CVE-2026-2543?

CVE-2026-2543 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-2543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-2543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-2543 have an EU (EUVD) identifier?

Yes. CVE-2026-2543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6121.

When was CVE-2026-2543 published?

CVE-2026-2543 was published on 2026-02-16 and last updated on 2026-06-17.

CVE-2026-2543

CVE-2026-2543 is a low-severity vulnerability with a CVSS 3.x base score of 2.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-620.

Key facts

Severity: Low (CVSS 3.x base score 2.7)
CVSS v2: 3.3
CVSS v4: 5.1
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6121
Weakness: CWE-620
Published: 2026-02-16
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-2543?: CVE-2026-2543 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-2543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-2543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2543 have an EU (EUVD) identifier?: Yes. CVE-2026-2543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6121.
When was CVE-2026-2543 published?: CVE-2026-2543 was published on 2026-02-16 and last updated on 2026-06-17.

References

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