CVE-2022-20614Network attack vector

Authenticated DNS resolution via unchecked SMTP validation

Published Jan 12, 2022 · Updated Aug 3, 2024

Missing authorization in Jenkins Mailer Plugin 391.ve4a_38c1b_cf4b_ and earlier allows remote authenticated users to trigger DNS lookups. The doCheckSmtpServer form-validation method passes its untrusted value to InetAddress.getByName without checking Overall/Administer permission. Overall/Read access is sufficient to make the controller resolver query an attacker-specified hostname, exposing only a DNS interaction.

CVSS severity4.3
Medium
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Jenkins Mailer Plugin 391.ve4a_38c1b_cf4b_ and earlier allows remote authenticated users to trigger DNS lookups. The doCheckSmtpServer form-validation method passes its untrusted value to InetAddress.getByName without checking Overall/Administer permission. Overall/Read access is sufficient to make the controller resolver query an attacker-specified hostname, exposing only a DNS interaction.

The record

CVE
CVE-2022-20614
Published
Jan 12, 2022
Updated
Aug 3, 2024
Vendor
Jenkins Project
Product
Mailer Plugin
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 12, 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?

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

  1. Affected versionversion=unspecified <=391.ve4a_38c1b_cf4b_

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · Mailer Pluginversion=unspecified <=391.ve4a_38c1b_cf4b_

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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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