How severe is CVE-2025-52936?

CVE-2025-52936 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2025-52936 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-52936?

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

Does CVE-2025-52936 have an EU (EUVD) identifier?

Yes. CVE-2025-52936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28479.

When was CVE-2025-52936 published?

CVE-2025-52936 was published on 2025-06-23 and last updated on 2026-06-17.

CVE-2025-52936

CVE-2025-52936 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. 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-59.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-28479
Weakness: CWE-59
Published: 2025-06-23
Last modified: 2026-06-17

Description

Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.

Frequently asked questions

What is CVE-2025-52936?: Improper Link Resolution Before File Access ('Link Following') vulnerability in yrutschle sslh.This issue affects sslh: before 2.2.2.
How severe is CVE-2025-52936?: CVE-2025-52936 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-52936 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-52936?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-52936 have an EU (EUVD) identifier?: Yes. CVE-2025-52936 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-28479.
When was CVE-2025-52936 published?: CVE-2025-52936 was published on 2025-06-23 and last updated on 2026-06-17.

References

Other CWE-59 (Improper Link Resolution Before File Access (Link Following)) vulnerabilities

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CVE-2002-2374 — Critical (CVSS 10.0): Unspecified vulnerability in pprosetup in Sun PatchPro 2.0 has unknown impact and attack vectors related to "unsafe use…

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