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CVE Record

CVE-2021-29863: IBM QRadar SIEM 7.3 and 7.4 is vulnerable to server side request forgery (SSRF).

IBM QRadar SIEM 7.3 and 7.4 is vulnerable to server side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks. This vulnerability is due to an incomplete fix for CVE-2020-4786. IBM X-Force ID: 206087.

MediumCVSS 5.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM QRadar SIEM 7.3 and 7.4 had an authenticated SSRF flaw. A logged-in attacker could make the QRadar system send unauthorized requests, which may expose internal network details or support follow-on attacks. The issue is medium severity, but QRadar’s security-monitoring role makes timely remediation important.

Executive priority

Treat as a scheduled but prompt security maintenance item. It is not documented as actively exploited, but it affects a core security platform and can help an authenticated attacker map internal services or support later intrusion activity.

Technical view

CVE-2021-29863 is an SSRF vulnerability in IBM QRadar SIEM 7.3 and 7.4, caused by an incomplete fix for CVE-2020-4786. The CVSS 3.0 score is 5.4, with network attack vector, low privileges required, low complexity, no user interaction, and limited confidentiality and integrity impact.

Likely exposure

Exposure is limited to IBM QRadar SIEM 7.3 and 7.4 deployments where an attacker can authenticate. Risk increases if QRadar interfaces are reachable by broad internal user groups or exposed beyond trusted administrative networks.

Exploitation context

The source bundle does not identify public exploitation or CISA KEV listing. The documented impact is authenticated SSRF that may enable unauthorized requests from QRadar, potentially leading to network enumeration or facilitating other attacks.

Researcher notes

Do not assume unauthenticated exploitation from the supplied sources. Key details are authenticated SSRF, incomplete remediation of CVE-2020-4786, CVSS 5.4, and affected QRadar SIEM 7.3/7.4. IBM’s advisory and X-Force entry are the controlling remediation references.

Mitigation direction

  • Review IBM advisory for CVE-2021-29863 and apply the official QRadar fix.
  • Prioritize affected QRadar SIEM 7.3 and 7.4 systems.
  • Restrict QRadar administrative access to trusted users and networks.
  • Monitor QRadar-originated outbound requests for unusual internal scanning patterns.
  • Check IBM X-Force entry for updated remediation guidance.

Validation and detection

  • Inventory QRadar SIEM instances and confirm whether versions 7.3 or 7.4 are present.
  • Verify installed QRadar fixes against IBM advisory requirements.
  • Confirm QRadar access is limited to authorized administrative users.
  • Review logs for unusual authenticated activity before remediation.
  • Check outbound network telemetry from QRadar for suspicious request patterns.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Cloud metadata behavior lookup

The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-29863 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/C:L/A:N/PR:L/AC:L/I:L/S:U/AV:N/UI:N/E:U/RL:O/RC:C

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.4CVSS 3.0MediumCVSS:3.0/C:L/A:N/PR:L/AC:L/I:L/S:U/AV:N/UI:N/E:U/RL:O/RC:C2.82.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2021-29863Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/C:L/A:N/PR:L/AC:L/I:L/S:U/AV:N/UI:N/E:U/RL:O/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMQRadar SIEM7.3, 7.4Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.