CVE-2021-20373Network attack vector

File disclosure via unenforced LOAD directory restrictions

Published Dec 9, 2021 · Updated Sep 17, 2024

Information disclosure in IBM Db2 9.7, 10.1, 10.5, 11.1, and 11.5 allows remote attackers to read files through the LOAD utility. Under certain circumstances, LOAD accesses input files as the Db2 instance owner without enforcing configured directory restrictions. The vulnerable path is reached when LOAD processes a file; IBM has not disclosed the triggering circumstances or replication details.

CVSS severity5.9
Medium
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in IBM Db2 9.7, 10.1, 10.5, 11.1, and 11.5 allows remote attackers to read files through the LOAD utility. Under certain circumstances, LOAD accesses input files as the Db2 instance owner without enforcing configured directory restrictions. The vulnerable path is reached when LOAD processes a file; IBM has not disclosed the triggering circumstances or replication details.

The record

CVE
CVE-2021-20373
Published
Dec 9, 2021
Updated
Sep 17, 2024
Vendor
IBM
Product
IBM Db2 for Linux, UNIX, and Windows
Classifications
T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 9, 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=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 vectornetwork
Required privilegesunauthenticated

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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.9IBM CorporationCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

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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