CVE-2021-29863Network attack vector

Authenticated SSRF via incomplete request validation

Published Dec 1, 2021 · Updated Sep 16, 2024

Server-side request forgery in IBM QRadar SIEM 7.3 and 7.4 allows remote authenticated users to send unauthorized server-side requests. IBM has not published the affected endpoint or the input-handling error that remained after its incomplete fix for CVE-2020-4786. Exploitation requires a valid account and lets the QRadar host reach unintended destinations, enabling internal network enumeration or related attacks.

CVSS severity5.4
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in IBM QRadar SIEM 7.3 and 7.4 allows remote authenticated users to send unauthorized server-side requests. IBM has not published the affected endpoint or the input-handling error that remained after its incomplete fix for CVE-2020-4786. Exploitation requires a valid account and lets the QRadar host reach unintended destinations, enabling internal network enumeration or related attacks.

The record

CVE
CVE-2021-29863
Published
Dec 1, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
QRadar SIEM
Classifications
CWE-918, CAPEC-664, T1046
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 1, 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

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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=7.3
  2. Affected versionversion=7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · QRadar SIEMversion=7.3; version=7.4

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
5.4IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1046Network Service Discovery

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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