What is CVE-2023-1665?

CVE-2023-1665 is a critical-severity vulnerability in Linagora Linagora/twake, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-03-27.

How severe is CVE-2023-1665?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-1665 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linagora Linagora/twake

CVE-2023-1665

Improper Restriction of Excessive Authentication Attempts in GitHub repository linagora/twake prior to 0.0.0.

Published 2023-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Linagora Linagora/twake — versions unspecified
Linagora Twake

Weakness classification (CWE)

CWE-307 — Improper Restriction of Excessive Authentication Attempts

Public proof-of-concept exploits

References

huntr.dev/bounties/db8fcbab-6ef0-44ba-b5c6-3b0f17ca22a2 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/linagora/twake/commit/599f397561a771251dfc7cafb8cecda5ab22b8b3 (Patch)

Frequently asked questions

What is CVE-2023-1665?: CVE-2023-1665 is a critical-severity vulnerability in Linagora Linagora/twake, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2023-03-27.
How severe is CVE-2023-1665?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-1665 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.