CVE-2022-20964Public exploitNetwork attack vector

Authenticated command execution via tcpdump hostName injection

Published Jan 18, 2023 · Updated Nov 21, 2024

Command injection in affected Cisco Identity Services Engine releases allows remote authenticated users to execute operating system commands. The tcpdump Start endpoint accepts shell metacharacters in the hostName request value and incorporates them into an operating system command. Access requires a valid authorized account with privileges sufficient to use tcpdump; commands run as the web services user, while root access requires chaining another issue.

CVSS severity6.3
Medium
EPSS probability30.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in affected Cisco Identity Services Engine releases allows remote authenticated users to execute operating system commands. The tcpdump Start endpoint accepts shell metacharacters in the hostName request value and incorporates them into an operating system command. Access requires a valid authorized account with privileges sufficient to use tcpdump; commands run as the web services user, while root access requires chaining another issue.

The record

CVE
CVE-2022-20964
Published
Jan 18, 2023
Updated
Nov 21, 2024
Vendor
ClamAV
Product
Cisco Identity Services Engine
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.0
  2. Affected versionversion=2.6.0 p1
  3. Affected versionversion=2.6.0 p10
  4. Affected versionversion=2.6.0 p11
  5. Affected versionversion=2.6.0 p12
  6. Affected versionversion=2.6.0 p2
  7. Affected versionversion=2.6.0 p3
  8. Affected versionversion=2.6.0 p5
  9. Affected versionversion=2.6.0 p6
  10. Affected versionversion=2.6.0 p7
  11. Affected versionversion=2.6.0 p8
  12. Affected versionversion=2.6.0 p9
  13. Affected versionversion=2.7.0
  14. Affected versionversion=2.7.0 p1
  15. Affected versionversion=2.7.0 p2
  16. Affected versionversion=2.7.0 p3
  17. Affected versionversion=2.7.0 p4
  18. Affected versionversion=2.7.0 p5
  19. Affected versionversion=2.7.0 p6
  20. Affected versionversion=2.7.0 p7
  21. Affected versionversion=3.0.0
  22. Affected versionversion=3.0.0 p1
  23. Affected versionversion=3.0.0 p2
  24. Affected versionversion=3.0.0 p3
  25. Affected versionversion=3.0.0 p4
  26. Affected versionversion=3.0.0 p5
  27. Affected versionversion=3.0.0 p6
  28. Affected versionversion=3.1.0
  29. Affected versionversion=3.1.0 p1
  30. Affected versionversion=3.1.0 p3
  31. Affected versionversion=3.1.0 p4
  32. Affected versionversion=3.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Identity Services Engineversion=2.6.0; version=2.6.0 p1; version=2.6.0 p10; version=2.6.0 p11; version=2.6.0 p12; version=2.6.0 p2; version=2.6.0 p3; version=2.6.0 p5; version=2.6.0 p6; version=2.6.0 p7; version=2.6.0 p8; version=2.6.0 p9; version=2.7.0; version=2.7.0 p1; version=2.7.0 p2; version=2.7.0 p3; version=2.7.0 p4; version=2.7.0 p5; version=2.7.0 p6; version=2.7.0 p7; version=3.0.0; version=3.0.0 p1; version=3.0.0 p2; version=3.0.0 p3; version=3.0.0 p4; version=3.0.0 p5; version=3.0.0 p6; version=3.1.0; version=3.1.0 p1; version=3.1.0 p3; version=3.1.0 p4; version=3.2.0

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.3Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

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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