How severe is CVE-2023-1837?

CVE-2023-1837 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-1837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1837?

CVE-2023-1837 affects Hypr Hypr Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1837?

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.

When was CVE-2023-1837 published?

CVE-2023-1837 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-1837

CVE-2023-1837 is a high-severity vulnerability in Hypr Hypr Server with a CVSS 3.x base score of 8.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Hypr Hypr Server
Published: 2023-05-23
Last modified: 2026-06-17

Description

Missing Authentication for critical function vulnerability in HYPR Server allows Authentication Bypass when using Legacy APIs.This issue affects HYPR Server: before 8.0 (with enabled Legacy APIs)

Frequently asked questions

What is CVE-2023-1837?: Missing Authentication for critical function vulnerability in HYPR Server allows Authentication Bypass when using Legacy APIs.This issue affects HYPR Server: before 8.0 (with enabled Legacy APIs)
How severe is CVE-2023-1837?: CVE-2023-1837 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-1837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1837?: CVE-2023-1837 affects Hypr Hypr Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1837?: 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.
When was CVE-2023-1837 published?: CVE-2023-1837 was published on 2023-05-23 and last updated on 2026-06-17.

References

https://www.hypr.com/security-advisories

Affected products (1)

cpe:2.3:a:hypr:hypr_server:*:*:*:*:*:*:*:*

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