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CVE-2025-52373

16
FAUCET Score

CVE-2025-52373 is a medium-severity vulnerability affecting hMailServer versions 5.8.6 and 5.6.9-beta, stemming from the use of a hardcoded cryptographic key in BlowFish.cpp. This flaw allows an authenticated attacker to decrypt database connection passwords stored in the hMailServer.ini configuration file. While the attack requires low privileges and user interaction, its impact is limited to confidentiality and integrity. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.6.9CPE matchmatch criteria
cpe:2.3:a:hmailserver:hmailserver:5.6.9:beta:*:*:*:*:*:*
5.8.6CPE matchmatch criteria
cpe:2.3:a:hmailserver:hmailserver:5.8.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.29%
Probability of exploitation in next 30 days
EPSS Percentile
21.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0029 is in the 30th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / hmailserver/hmailserver
Product
github.com / mojibake-dev/hMailEnum
ExploitThird Party Advisory
github.com / mojibake-dev/mojibake-CVE/blob/main/hMailServer/CVE-2025-52373.md
ExploitThird Party Advisory