What is CVE-2026-1621?

CVE-2026-1621 is a medium-severity vulnerability in Universal Software Inc. E-Municipality, classified under Authentication Bypass by Primary Weakness. CVSS score: 5.3/10. Published 2026-08-14.

How severe is CVE-2026-1621?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Universal Software Inc. E-Municipality

CVE-2026-1621

Authentication bypass by primary weakness vulnerability in Universal Software Inc. E-Municipality allows Exploitation of Trusted Identifiers. This issue affects E-Municipality: from 20251127 before 20260204.

Published 2026-08-14 · last modified 2026-08-26.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Universal Software Inc. E-Municipality — versions 20251127

Weakness classification (CWE)

CWE-305 — Authentication Bypass by Primary Weakness

References

siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0846 (government-resource)

Frequently asked questions

What is CVE-2026-1621?: CVE-2026-1621 is a medium-severity vulnerability in Universal Software Inc. E-Municipality, classified under Authentication Bypass by Primary Weakness. CVSS score: 5.3/10. Published 2026-08-14.
How severe is CVE-2026-1621?: Medium severity. CVSS v3 base score is 5.3 out of 10.