CVE-2021-38926

Local privilege escalation via task column modification

Published Dec 9, 2021 · Updated Sep 16, 2024

Privilege escalation in IBM Db2 for Linux, UNIX, and Windows 9.7, 10.1, 10.5, 11.1, and 11.5 allows local users to gain privileges. The administrative task scheduler permits modification of columns in existing tasks without adequate authorization, enabling a local account to alter task configuration and elevate privileges. Exploitation requires local access and affects integrity; the published vector reports no confidentiality or availability impact.

CVSS severity5.5
Medium
EPSS probability0.32%
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 Db2 for Linux, UNIX, and Windows 9.7, 10.1, 10.5, 11.1, and 11.5 allows local users to gain privileges. The administrative task scheduler permits modification of columns in existing tasks without adequate authorization, enabling a local account to alter task configuration and elevate privileges. Exploitation requires local access and affects integrity; the published vector reports no confidentiality or availability impact.

The record

CVE
CVE-2021-38926
Published
Dec 9, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
IBM Db2 for Linux, UNIX, and Windows
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 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=10.1
  2. Affected versionversion=10.5
  3. Affected versionversion=11.1
  4. Affected versionversion=11.5
  5. Affected versionversion=9.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

IBM · IBM Db2 for Linux, UNIX, and Windowsversion=10.1; version=10.5; version=11.1; version=11.5; version=9.7

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
2.1NVDAV:L/AC:L/Au:N/C:N/I:P/A:N
5.5IBM CorporationCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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)
Vectorlocal
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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