How severe is CVE-2025-52372?

CVE-2025-52372 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-52372 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-52372?

CVE-2025-52372 primarily affects Hmailserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-52372?

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

Does CVE-2025-52372 have an EU (EUVD) identifier?

Yes. CVE-2025-52372 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22115.

When was CVE-2025-52372 published?

CVE-2025-52372 was published on 2025-07-21 and last updated on 2026-06-17.

CVE-2025-52372

CVE-2025-52372 is a medium-severity vulnerability in Hmailserver with a CVSS 3.x base score of 5.1. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.1)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22115
Weakness: CWE-200
Affected product: Hmailserver
Published: 2025-07-21
Last modified: 2026-06-17

Description

An issue in hMailServer v.5.8.6 allows a local attacker to obtain sensitive information via the hmailserver/installation/hMailServerInnoExtension.iss and hMailServer.ini components.

Frequently asked questions

What is CVE-2025-52372?: An issue in hMailServer v.5.8.6 allows a local attacker to obtain sensitive information via the hmailserver/installation/hMailServerInnoExtension.iss and hMailServer.ini components.
How severe is CVE-2025-52372?: CVE-2025-52372 has a CVSS 3.x base score of 5.1, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-52372 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-52372?: CVE-2025-52372 primarily affects Hmailserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-52372?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52372 have an EU (EUVD) identifier?: Yes. CVE-2025-52372 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22115.
When was CVE-2025-52372 published?: CVE-2025-52372 was published on 2025-07-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:hmailserver:hmailserver:5.6.9:beta:*:*:*:*:*:*
cpe:2.3:a:hmailserver:hmailserver:5.8.6:*:*:*:*:*:*:*

More vulnerabilities in Hmailserver

CVE-2013-5571 — Medium (CVSS 5.9): HMailServer 5.3.x and prior: Memory Corruption which could cause DOS
CVE-2025-52374 — Medium (CVSS 4.6): Use of hardcoded cryptographic key in Encryption.cs in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt…
CVE-2025-52373 — Medium (CVSS 4.6): Use of hardcoded cryptographic key in BlowFish.cpp in hMailServer 5.8.6 and 5.6.9-beta allows attacker to decrypt…
CVE-2008-3676 — Medium (CVSS 4.3): Unspecified vulnerability in the IMAP server in hMailServer 4.4.1 allows remote authenticated users to cause a denial…

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