CVE-2020-4993Network attack vector

File integrity compromise via ZIP path traversal

Published May 5, 2021 · Updated Sep 16, 2024

Path traversal in IBM QRadar SIEM 7.3 and 7.4 allows remote authenticated users to alter files via crafted ZIP archives. IBM identifies ZIP decompression or signature verification as the locus but has not disclosed the responsible component or exact path-handling error. Network access with high privileges is required, and exploitation can compromise file integrity without reported disclosure or service interruption.

CVSS severity4.9
Medium
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in IBM QRadar SIEM 7.3 and 7.4 allows remote authenticated users to alter files via crafted ZIP archives. IBM identifies ZIP decompression or signature verification as the locus but has not disclosed the responsible component or exact path-handling error. Network access with high privileges is required, and exploitation can compromise file integrity without reported disclosure or service interruption.

The record

CVE
CVE-2020-4993
Published
May 5, 2021
Updated
Sep 16, 2024
Vendor
IBM
Product
QRadar SIEM
Classifications
CWE-22
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 5, 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 privilegesadmin

What is affected?

IBM · QRadar SIEMversion=7.3; version=7.4

Published CVSS scores

4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
4.9IBM CorporationCVSS:3.0/AV:N/AC:L/PR:H/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)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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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