CVE-2022-27332Network attack vector

Unauthenticated caller-log writes via incorrect access checks

Published Apr 27, 2022 · Updated Aug 3, 2024

Missing authentication in Zammad 5.0.3 allows remote attackers to write arbitrary entries to the CTI caller log over the network. The caller-log write path performs incorrect access checking and accepts entries without authentication; the affected function and request field remain undisclosed. Network reachability is sufficient, and forged entries can support phishing or interrupt service availability.

CVSS severity9.1
Critical
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Zammad 5.0.3 allows remote attackers to write arbitrary entries to the CTI caller log over the network. The caller-log write path performs incorrect access checking and accepts entries without authentication; the affected function and request field remain undisclosed. Network reachability is sufficient, and forged entries can support phishing or interrupt service availability.

The record

CVE
CVE-2022-27332
Published
Apr 27, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
5.8NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:N/I:P/A:P

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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