How severe is CVE-2025-58187?

CVE-2025-58187 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-58187 being actively exploited?

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

What products are affected by CVE-2025-58187?

CVE-2025-58187 affects Golang Go. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-58187?

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-2025-58187 have an EU (EUVD) identifier?

Yes. CVE-2025-58187 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36738.

When was CVE-2025-58187 published?

CVE-2025-58187 was published on 2025-10-29 and last updated on 2026-06-17.

CVE-2025-58187

CVE-2025-58187 is a high-severity vulnerability in Golang Go with a CVSS 3.x base score of 7.5. 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-407.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-36738
Weakness: CWE-407
Affected product: Golang Go
Published: 2025-10-29
Last modified: 2026-06-17

Description

Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.

Frequently asked questions

What is CVE-2025-58187?: Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.
How severe is CVE-2025-58187?: CVE-2025-58187 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-58187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-58187?: CVE-2025-58187 affects Golang Go. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-58187?: 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-2025-58187 have an EU (EUVD) identifier?: Yes. CVE-2025-58187 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-36738.
When was CVE-2025-58187 published?: CVE-2025-58187 was published on 2025-10-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

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