CVE-2023-1665Public exploitNetwork attack vector

Account compromise via unrestricted login attempts

Published Mar 27, 2023 · Updated Feb 19, 2025

Authentication throttling failure in LINAGORA Twake before 2023.Q1.1223 allows remote attackers to brute-force account passwords. The login page accepts repeated unauthenticated credential submissions without restricting the number of attempts. No account is required, and a successful guess grants the access available to the targeted account without broader server compromise.

CVSS severity9.8
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication throttling failure in LINAGORA Twake before 2023.Q1.1223 allows remote attackers to brute-force account passwords. The login page accepts repeated unauthenticated credential submissions without restricting the number of attempts. No account is required, and a successful guess grants the access available to the targeted account without broader server compromise.

The record

CVE
CVE-2023-1665
Published
Mar 27, 2023
Updated
Feb 19, 2025
Vendor
LINAGORA
Product
Twake
Classifications
CWE-307, T1110.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <0.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LINAGORA · Twakeversion=unspecified <0.0.0

Published CVSS scores

7.8[email protected]CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110.001Password Guessing

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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