CVE-2020-1719Network attack vector

Cross-domain identity assumption via stale EJB principal

Published Jun 7, 2021 · Updated Aug 4, 2024

Privilege context switching error in WildFly before 20.0.0.Final allows remote authenticated users to assume another EJB caller's identity. EJBContext fails to restore the original principal after one EJB invokes another EJB assigned to a different security domain. Exploitation requires low-privileged access and a cross-domain EJB call, after which the retained principal grants unauthorized access to data and operations.

CVSS severity4.2
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege context switching error in WildFly before 20.0.0.Final allows remote authenticated users to assume another EJB caller's identity. EJBContext fails to restore the original principal after one EJB invokes another EJB assigned to a different security domain. Exploitation requires low-privileged access and a cross-domain EJB call, after which the retained principal grants unauthorized access to data and operations.

The record

CVE
CVE-2020-1719
Published
Jun 7, 2021
Updated
Aug 4, 2024
Vendor
389 Directory Server
Product
WildFly
Classifications
CWE-270
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 7, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=wildfly 20.0.0.Final

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

389 Directory Server · WildFlyversion=wildfly 20.0.0.Final

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.2Red HatCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/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.

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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-270Privilege Context Switching Error

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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