How severe is CVE-2021-45031?

CVE-2021-45031 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability high.

Is CVE-2021-45031 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45031?

CVE-2021-45031 affects Mepsan Stawiz Usc++. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45031?

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-2021-45031 published?

CVE-2021-45031 was published on 2022-03-30 and last updated on 2026-06-17.

CVE-2021-45031

CVE-2021-45031 is a high-severity vulnerability in Mepsan Stawiz Usc++ with a CVSS 3.x base score of 7.7. 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-305.

Key facts

Severity: High (CVSS 3.x base score 7.7)
CVSS v2: 7.5
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-305
Affected product: Mepsan Stawiz Usc++
Published: 2022-03-30
Last modified: 2026-06-17

Description

A vulnerability in MEPSAN's USC+ before version 3.0 has a weakness in login function which lets attackers to generate high privileged accounts passwords.

Frequently asked questions

What is CVE-2021-45031?: A vulnerability in MEPSAN's USC+ before version 3.0 has a weakness in login function which lets attackers to generate high privileged accounts passwords.
How severe is CVE-2021-45031?: CVE-2021-45031 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability high.
Is CVE-2021-45031 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45031?: CVE-2021-45031 affects Mepsan Stawiz Usc++. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45031?: 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-2021-45031 published?: CVE-2021-45031 was published on 2022-03-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:mepsan:stawiz_usc\+\+:*:*:*:*:*:*:*:*

Other CWE-305 vulnerabilities

CVE-2025-4320 — Critical (CVSS 10.0): Authentication Bypass by Primary Weakness, Weak Password Recovery Mechanism for Forgotten Password vulnerability in…
CVE-2025-24522 — Critical (CVSS 10.0): KUNBUS Revolution Pi OS Bookworm 01/2025 is vulnerable because authentication is not configured by default for the…
CVE-2024-36388 — Critical (CVSS 10.0): MileSight DeviceHub - CWE-305 Missing Authentication for Critical Function
CVE-2024-1403 — Critical (CVSS 10.0): In OpenEdge Authentication Gateway and AdminServer prior to 11.7.19, 12.2.14, 12.8.1 on all platforms supported by the…
CVE-2026-25555 — Critical (CVSS 9.8): OpenBullet2 through version 0.3.2 contains an authentication bypass vulnerability in the API key authentication…
CVE-2026-4670 — Critical (CVSS 9.8): Authentication bypass by primary weakness vulnerability in Progress Software MOVEit Automation allows Authentication…

Browse all CWE-305 vulnerabilities →