CVE-2021-29679Network attack vector

Authenticated code execution via unneutralized SSI directives

Published Oct 15, 2021 · Updated Sep 17, 2024

Code injection in IBM Cognos Analytics 11.1.7 and 11.2.0 allows remote authenticated users to execute code via crafted SSI directives. A server-side input-handling path fails to neutralize user-controlled content before an SSI interpreter processes it as a directive. Authentication is required; IBM has not disclosed the affected function or input field, and successful exploitation executes code on the server.

CVSS severity8.8
High
EPSS probability2.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in IBM Cognos Analytics 11.1.7 and 11.2.0 allows remote authenticated users to execute code via crafted SSI directives. A server-side input-handling path fails to neutralize user-controlled content before an SSI interpreter processes it as a directive. Authentication is required; IBM has not disclosed the affected function or input field, and successful exploitation executes code on the server.

The record

CVE
CVE-2021-29679
Published
Oct 15, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
Cognos Analytics
Classifications
CWE-94, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 15, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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=11.1.7
  2. Affected versionversion=11.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Cognos Analyticsversion=11.1.7; version=11.2.0

Published CVSS scores

8.8IBMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

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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