How severe is CVE-2024-56529?

CVE-2024-56529 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2024-56529 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-56529?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-56529 have an EU (EUVD) identifier?

Yes. CVE-2024-56529 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53178.

When was CVE-2024-56529 published?

CVE-2024-56529 was published on 2025-01-28 and last updated on 2026-06-17.

CVE-2024-56529

CVE-2024-56529 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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-384.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-53178
Weakness: CWE-384
Published: 2025-01-28
Last modified: 2026-06-17

Description

Mailcow through 2024-11b has a session fixation vulnerability in the web panel. It allows remote attackers to set a session identifier when HSTS is disabled on a victim's browser. After a user logs in, they are authenticated and the session identifier is valid. Then, a remote attacker can access the victim's web panel with the same session identifier.

Frequently asked questions

What is CVE-2024-56529?: Mailcow through 2024-11b has a session fixation vulnerability in the web panel. It allows remote attackers to set a session identifier when HSTS is disabled on a victim's browser. After a user logs in, they are authenticated and the session identifier is valid. Then, a remote attacker can access the victim's web panel with the same session identifier.
How severe is CVE-2024-56529?: CVE-2024-56529 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2024-56529 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-56529?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-56529 have an EU (EUVD) identifier?: Yes. CVE-2024-56529 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-53178.
When was CVE-2024-56529 published?: CVE-2024-56529 was published on 2025-01-28 and last updated on 2026-06-17.

References

https://github.com/mailcow/mailcow-dockerized/security/advisories/GHSA-23c8-4wwr-g3c6

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