CVE-2021-29736Network attack vector

Authenticated privilege escalation

Published Jul 30, 2021 · Updated Sep 16, 2024

Privilege escalation in IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 allows remote authenticated users to gain elevated privileges. IBM classifies the problem details for APAR PH34690 as confidential and has not published the affected component or faulty operation. Exploitation requires existing low-privilege access and high-complexity network conditions, while the level of elevated access remains undisclosed.

CVSS severity5.0
Medium
EPSS probability1.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 allows remote authenticated users to gain elevated privileges. IBM classifies the problem details for APAR PH34690 as confidential and has not published the affected component or faulty operation. Exploitation requires existing low-privilege access and high-complexity network conditions, while the level of elevated access remains undisclosed.

The record

CVE
CVE-2021-29736
Published
Jul 30, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM WebSphere Application Server
Classifications
T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.0
  2. Affected versionversion=8.0
  3. Affected versionversion=8.5
  4. Affected versionversion=9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM WebSphere Application Serverversion=7.0; version=8.0; version=8.5; version=9.0

Published CVSS scores

5.0IBMCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

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

T1068Exploitation for Privilege Escalation

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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