What is CVE-2026-33550?

CVE-2026-33550 is a low-severity vulnerability in Alinto Sogo, classified under Use of Single-factor Authentication. CVSS score: 2.0/10. Published 2026-03-22.

How severe is CVE-2026-33550?

Low severity. CVSS v3 base score is 2.0 out of 10.

Vulnerability in Alinto Sogo

CVE-2026-33550

SOGo before 5.12.5 does not renew the OTP if a user disables/enables it, and has a too short length (only 12 digits instead of the 20 recommended).

Published 2026-03-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.0 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.6th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001

Affected products

Alinto Sogo — versions 0

Weakness classification (CWE)

CWE-308 — Use of Single-factor Authentication

References

github.com/Alinto/sogo/commit/83d4c522f87cfde0ba543837d9b24c3479083ec2 (Patch)
github.com/Alinto/sogo/releases/tag/SOGo-5.12.5 (Release Notes)

Frequently asked questions

What is CVE-2026-33550?: CVE-2026-33550 is a low-severity vulnerability in Alinto Sogo, classified under Use of Single-factor Authentication. CVSS score: 2.0/10. Published 2026-03-22.
How severe is CVE-2026-33550?: Low severity. CVSS v3 base score is 2.0 out of 10.