What is CVE-2021-45031?

CVE-2021-45031 is a high-severity vulnerability in Mepsan Stawiz Usc\+\+, classified under Authentication Bypass by Primary Weakness. CVSS score: 7.7/10. Published 2022-03-30.

How severe is CVE-2021-45031?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Mepsan Stawiz Usc\+\+

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.

Published 2022-03-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H.

EPSS exploit prediction

EPSS: 0.008 (54.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Mepsan Stawiz Usc\+\+
Mepsan Usc+ — versions unspecified

Weakness classification (CWE)

CWE-305 — Authentication Bypass by Primary Weakness

References

www.usom.gov.tr/bildirim/tr-22-0269 (Third Party Advisory, government-resource, broken-link)
siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-22-0269 (government-resource)

Frequently asked questions

What is CVE-2021-45031?: CVE-2021-45031 is a high-severity vulnerability in Mepsan Stawiz Usc\+\+, classified under Authentication Bypass by Primary Weakness. CVSS score: 7.7/10. Published 2022-03-30.
How severe is CVE-2021-45031?: High severity. CVSS v3 base score is 7.7 out of 10.