How severe is CVE-2026-35541?

CVE-2026-35541 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-35541 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35541?

CVE-2026-35541 affects Roundcube Webmail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35541?

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

Does CVE-2026-35541 have an EU (EUVD) identifier?

Yes. CVE-2026-35541 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18585.

When was CVE-2026-35541 published?

CVE-2026-35541 was published on 2026-04-03 and last updated on 2026-06-17.

CVE-2026-35541

CVE-2026-35541 is a medium-severity vulnerability in Roundcube Webmail with a CVSS 3.x base score of 4.2. 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-843.

Key facts

Severity: Medium (CVSS 3.x base score 4.2)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-18585
Weakness: CWE-843
Affected product: Roundcube Webmail
Published: 2026-04-03
Last modified: 2026-06-17

Description

An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.

Frequently asked questions

What is CVE-2026-35541?: An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.
How severe is CVE-2026-35541?: CVE-2026-35541 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-35541 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35541?: CVE-2026-35541 affects Roundcube Webmail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35541?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35541 have an EU (EUVD) identifier?: Yes. CVE-2026-35541 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-18585.
When was CVE-2026-35541 published?: CVE-2026-35541 was published on 2026-04-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*

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