CVE-2021-1484Network attack vector

Authenticated service interruption via device-template command injection

Published Nov 15, 2024 · Updated Nov 15, 2024

Command injection in Cisco Catalyst SD-WAN Manager before 20.5.1 allows remote authenticated users to interrupt the service. The web UI improperly validates crafted input submitted to device template configuration, allowing that input to inject commands on the affected system. An authenticated vManage account with access to device template configuration is required, and the reported consequence is denial of service.

CVSS severity6.5
Medium
EPSS probability1.24%
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 Cisco Catalyst SD-WAN Manager before 20.5.1 allows remote authenticated users to interrupt the service. The web UI improperly validates crafted input submitted to device template configuration, allowing that input to inject commands on the affected system. An authenticated vManage account with access to device template configuration is required, and the reported consequence is denial of service.

The record

CVE
CVE-2021-1484
Published
Nov 15, 2024
Updated
Nov 15, 2024
Vendor
ClamAV
Product
Cisco Catalyst SD-WAN Manager
Classifications
CWE-88, T1499, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 15, 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=17.2.10
  2. Affected versionversion=17.2.4
  3. Affected versionversion=17.2.5
  4. Affected versionversion=17.2.6
  5. Affected versionversion=17.2.7
  6. Affected versionversion=17.2.8
  7. Affected versionversion=17.2.9
  8. Affected versionversion=18.2.0
  9. Affected versionversion=18.3.0
  10. Affected versionversion=18.3.1
  11. Affected versionversion=18.3.1.1
  12. Affected versionversion=18.3.3
  13. Affected versionversion=18.3.3.1
  14. Affected versionversion=18.3.4
  15. Affected versionversion=18.3.5
  16. Affected versionversion=18.3.6
  17. Affected versionversion=18.3.6.1
  18. Affected versionversion=18.3.7
  19. Affected versionversion=18.3.8
  20. Affected versionversion=18.4.0
  21. Affected versionversion=18.4.0.1
  22. Affected versionversion=18.4.1
  23. Affected versionversion=18.4.3
  24. Affected versionversion=18.4.302
  25. Affected versionversion=18.4.303
  26. Affected versionversion=18.4.4
  27. Affected versionversion=18.4.5
  28. Affected versionversion=18.4.501_ES
  29. Affected versionversion=19.0.0
  30. Affected versionversion=19.0.1a
  31. Affected versionversion=19.1.0
  32. Affected versionversion=19.2.0
  33. Affected versionversion=19.2.097
  34. Affected versionversion=19.2.098
  35. Affected versionversion=19.2.099
  36. Affected versionversion=19.2.1
  37. Affected versionversion=19.2.2
  38. Affected versionversion=19.2.3
  39. Affected versionversion=19.2.31
  40. Affected versionversion=19.2.4
  41. Affected versionversion=19.2.4.0.1
  42. Affected versionversion=19.2.929
  43. Affected versionversion=19.3.0
  44. Affected versionversion=20.1.1
  45. Affected versionversion=20.1.1.1
  46. Affected versionversion=20.1.12
  47. Affected versionversion=20.1.2
  48. Affected versionversion=20.3.1
  49. Affected versionversion=20.3.2
  50. Affected versionversion=20.3.2.1
  51. Affected versionversion=20.3.2.1_927
  52. Affected versionversion=20.3.2.1_930
  53. Affected versionversion=20.3.2_928
  54. Affected versionversion=20.3.2_929
  55. Affected versionversion=20.3.3
  56. Affected versionversion=20.4.1
  57. Affected versionversion=20.4.1.0.1
  58. Affected versionversion=20.4.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Catalyst SD-WAN Managerversion=17.2.10; version=17.2.4; version=17.2.5; version=17.2.6; version=17.2.7; version=17.2.8; version=17.2.9; version=18.2.0; version=18.3.0; version=18.3.1; version=18.3.1.1; version=18.3.3; version=18.3.3.1; version=18.3.4; version=18.3.5; version=18.3.6; version=18.3.6.1; version=18.3.7; version=18.3.8; version=18.4.0; version=18.4.0.1; version=18.4.1; version=18.4.3; version=18.4.302; version=18.4.303; version=18.4.4; version=18.4.5; version=18.4.501_ES; version=19.0.0; version=19.0.1a; version=19.1.0; version=19.2.0; version=19.2.097; version=19.2.098; version=19.2.099; version=19.2.1; version=19.2.2; version=19.2.3; version=19.2.31; version=19.2.4; version=19.2.4.0.1; version=19.2.929; version=19.3.0; version=20.1.1; version=20.1.1.1; version=20.1.12; version=20.1.2; version=20.3.1; version=20.3.2; version=20.3.2.1; version=20.3.2.1_927; version=20.3.2.1_930; version=20.3.2_928; version=20.3.2_929; version=20.3.3; version=20.4.1; version=20.4.1.0.1; version=20.4.1.1

Published CVSS scores

6.5CiscoCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:X/RL:X/RC:X

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-88Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
T1499Endpoint Denial of Service
T1059Command and Scripting Interpreter

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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