CVE-2025-20355Network attack vector

User redirection via unvalidated HTTP request parameters

Published Nov 13, 2025 · Updated Nov 13, 2025

Open redirect in Cisco Catalyst Center Virtual Appliance allows remote attackers to send users from its web interface to malicious pages. The web interface accepts a modified HTTP request parameter as a redirect destination without verifying that the resulting URL is trusted; Cisco has not identified the endpoint or parameter. Exploitation requires man-in-the-middle attackers to intercept and alter a user's request, and the affected interface then redirects that user to attacker-controlled content.

CVSS severity4.7
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in Cisco Catalyst Center Virtual Appliance allows remote attackers to send users from its web interface to malicious pages. The web interface accepts a modified HTTP request parameter as a redirect destination without verifying that the resulting URL is trusted; Cisco has not identified the endpoint or parameter. Exploitation requires man-in-the-middle attackers to intercept and alter a user's request, and the affected interface then redirects that user to attacker-controlled content.

The record

CVE
CVE-2025-20355
Published
Nov 13, 2025
Updated
Nov 13, 2025
Vendor
ClamAV
Product
Cisco Catalyst Center
Classifications
CWE-601
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 13, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 2025Record 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=1.0.0.0
  2. Affected versionversion=1.4.0.0
  3. Affected versionversion=2.1.1.0
  4. Affected versionversion=2.1.1.3
  5. Affected versionversion=2.1.2.0
  6. Affected versionversion=2.1.2.3
  7. Affected versionversion=2.1.2.4
  8. Affected versionversion=2.1.2.5
  9. Affected versionversion=2.1.2.6
  10. Affected versionversion=2.1.2.7
  11. Affected versionversion=2.1.2.8
  12. Affected versionversion=2.2.1.0
  13. Affected versionversion=2.2.1.3
  14. Affected versionversion=2.2.2.0
  15. Affected versionversion=2.2.2.1
  16. Affected versionversion=2.2.2.3
  17. Affected versionversion=2.2.2.4
  18. Affected versionversion=2.2.2.5
  19. Affected versionversion=2.2.2.6
  20. Affected versionversion=2.2.2.7
  21. Affected versionversion=2.2.2.8
  22. Affected versionversion=2.2.2.9
  23. Affected versionversion=2.2.3.0
  24. Affected versionversion=2.2.3.3
  25. Affected versionversion=2.2.3.4
  26. Affected versionversion=2.2.3.5
  27. Affected versionversion=2.2.3.6
  28. Affected versionversion=2.3.2.1
  29. Affected versionversion=2.3.2.1-AIRGAP
  30. Affected versionversion=2.3.2.1-AIRGAP-CA
  31. Affected versionversion=2.3.2.3
  32. Affected versionversion=2.3.3.0
  33. Affected versionversion=2.3.3.0-AIRGAP
  34. Affected versionversion=2.3.3.1
  35. Affected versionversion=2.3.3.1-AIRGAP
  36. Affected versionversion=2.3.3.3
  37. Affected versionversion=2.3.3.3-AIRGAP
  38. Affected versionversion=2.3.3.3-AIRGAP-CA
  39. Affected versionversion=2.3.3.4
  40. Affected versionversion=2.3.3.4-AIRGAP
  41. Affected versionversion=2.3.3.4-AIRGAP-MDNAC
  42. Affected versionversion=2.3.3.4-HF1
  43. Affected versionversion=2.3.3.5
  44. Affected versionversion=2.3.3.5-AIRGAP
  45. Affected versionversion=2.3.3.6
  46. Affected versionversion=2.3.3.6-70045-HF1
  47. Affected versionversion=2.3.3.6-AIRGAP
  48. Affected versionversion=2.3.3.6-AIRGAP-MDNAC
  49. Affected versionversion=2.3.3.7
  50. Affected versionversion=2.3.3.7-72323
  51. Affected versionversion=2.3.3.7-72328-AIRGAP
  52. Affected versionversion=2.3.3.7-72328-MDNAC
  53. Affected versionversion=2.3.3.7-AIRGAP
  54. Affected versionversion=2.3.3.7-AIRGAP-MDNAC
  55. Affected versionversion=2.3.4.0
  56. Affected versionversion=2.3.4.0-AIRGAP
  57. Affected versionversion=2.3.4.3
  58. Affected versionversion=2.3.4.3-AIRGAP
  59. Affected versionversion=2.3.5.0
  60. Affected versionversion=2.3.5.0-AIRGAP
  61. Affected versionversion=2.3.5.0-AIRGAP-MDNAC
  62. Affected versionversion=2.3.5.3
  63. Affected versionversion=2.3.5.3-AIRGAP
  64. Affected versionversion=2.3.5.3-AIRGAP-MDNAC
  65. Affected versionversion=2.3.5.4
  66. Affected versionversion=2.3.5.4-AIRGAP
  67. Affected versionversion=2.3.5.4-AIRGAP-MDNAC
  68. Affected versionversion=2.3.5.5
  69. Affected versionversion=2.3.5.5-70026-HF51
  70. Affected versionversion=2.3.5.5-70026-HF52
  71. Affected versionversion=2.3.5.5-70026-HF53
  72. Affected versionversion=2.3.5.5-70026-HF70
  73. Affected versionversion=2.3.5.5-70026-HF71
  74. Affected versionversion=2.3.5.5-70026-HF72
  75. Affected versionversion=2.3.5.5-AIRGAP
  76. Affected versionversion=2.3.5.5-AIRGAP-MDNAC
  77. Affected versionversion=2.3.5.6
  78. Affected versionversion=2.3.5.6-70143-HF20
  79. Affected versionversion=2.3.5.6-AIRGAP
  80. Affected versionversion=2.3.5.6-AIRGAP-MDNAC
  81. Affected versionversion=2.3.6.0
  82. Affected versionversion=2.3.6.0-AIRGAP
  83. Affected versionversion=2.3.7.0
  84. Affected versionversion=2.3.7.0-AIRGAP
  85. Affected versionversion=2.3.7.0-AIRGAP-MDNAC
  86. Affected versionversion=2.3.7.0-VA
  87. Affected versionversion=2.3.7.3
  88. Affected versionversion=2.3.7.3-AIRGAP
  89. Affected versionversion=2.3.7.3-AIRGAP-MDNAC
  90. Affected versionversion=2.3.7.4
  91. Affected versionversion=2.3.7.4-AIRGAP
  92. Affected versionversion=2.3.7.4-AIRGAP-MDNAC
  93. Affected versionversion=2.3.7.5-AIRGAP
  94. Affected versionversion=2.3.7.5-VA
  95. Affected versionversion=2.3.7.6
  96. Affected versionversion=2.3.7.6-AIRGAP
  97. Affected versionversion=2.3.7.6-AIRGAP-MDNAC
  98. Affected versionversion=2.3.7.6-VA
  99. Affected versionversion=2.3.7.7
  100. Affected versionversion=2.3.7.7-AIRGAP
  101. Affected versionversion=2.3.7.7-AIRGAP-MDNAC
  102. Affected versionversion=2.3.7.7-VA
  103. Affected versionversion=2.3.7.9
  104. Affected versionversion=2.3.7.9-70301-GSMU10
  105. Affected versionversion=2.3.7.9.75403.10-VA
  106. Affected versionversion=2.3.7.9-75403-GSMU10
  107. Affected versionversion=2.3.7.9-75403-SMU10
  108. Affected versionversion=2.3.7.9-AIRGAP
  109. Affected versionversion=2.3.7.9-AIRGAP-MDNAC
  110. Affected versionversion=2.3.7.9-VA

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Catalyst Centerversion=1.0.0.0; version=1.4.0.0; version=2.1.1.0; version=2.1.1.3; version=2.1.2.0; version=2.1.2.3; version=2.1.2.4; version=2.1.2.5; version=2.1.2.6; version=2.1.2.7; version=2.1.2.8; version=2.2.1.0; version=2.2.1.3; version=2.2.2.0; version=2.2.2.1; version=2.2.2.3; version=2.2.2.4; version=2.2.2.5; version=2.2.2.6; version=2.2.2.7; version=2.2.2.8; version=2.2.2.9; version=2.2.3.0; version=2.2.3.3; version=2.2.3.4; version=2.2.3.5; version=2.2.3.6; version=2.3.2.1; version=2.3.2.1-AIRGAP; version=2.3.2.1-AIRGAP-CA; version=2.3.2.3; version=2.3.3.0; version=2.3.3.0-AIRGAP; version=2.3.3.1; version=2.3.3.1-AIRGAP; version=2.3.3.3; version=2.3.3.3-AIRGAP; version=2.3.3.3-AIRGAP-CA; version=2.3.3.4; version=2.3.3.4-AIRGAP; version=2.3.3.4-AIRGAP-MDNAC; version=2.3.3.4-HF1; version=2.3.3.5; version=2.3.3.5-AIRGAP; version=2.3.3.6; version=2.3.3.6-70045-HF1; version=2.3.3.6-AIRGAP; version=2.3.3.6-AIRGAP-MDNAC; version=2.3.3.7; version=2.3.3.7-72323; version=2.3.3.7-72328-AIRGAP; version=2.3.3.7-72328-MDNAC; version=2.3.3.7-AIRGAP; version=2.3.3.7-AIRGAP-MDNAC; version=2.3.4.0; version=2.3.4.0-AIRGAP; version=2.3.4.3; version=2.3.4.3-AIRGAP; version=2.3.5.0; version=2.3.5.0-AIRGAP; version=2.3.5.0-AIRGAP-MDNAC; version=2.3.5.3; version=2.3.5.3-AIRGAP; version=2.3.5.3-AIRGAP-MDNAC; version=2.3.5.4; version=2.3.5.4-AIRGAP; version=2.3.5.4-AIRGAP-MDNAC; version=2.3.5.5; version=2.3.5.5-70026-HF51; version=2.3.5.5-70026-HF52; version=2.3.5.5-70026-HF53; version=2.3.5.5-70026-HF70; version=2.3.5.5-70026-HF71; version=2.3.5.5-70026-HF72; version=2.3.5.5-AIRGAP; version=2.3.5.5-AIRGAP-MDNAC; version=2.3.5.6; version=2.3.5.6-70143-HF20; version=2.3.5.6-AIRGAP; version=2.3.5.6-AIRGAP-MDNAC; version=2.3.6.0; version=2.3.6.0-AIRGAP; version=2.3.7.0; version=2.3.7.0-AIRGAP; version=2.3.7.0-AIRGAP-MDNAC; version=2.3.7.0-VA; version=2.3.7.3; version=2.3.7.3-AIRGAP; version=2.3.7.3-AIRGAP-MDNAC; version=2.3.7.4; version=2.3.7.4-AIRGAP; version=2.3.7.4-AIRGAP-MDNAC; version=2.3.7.5-AIRGAP; version=2.3.7.5-VA; version=2.3.7.6; version=2.3.7.6-AIRGAP; version=2.3.7.6-AIRGAP-MDNAC; version=2.3.7.6-VA; version=2.3.7.7; version=2.3.7.7-AIRGAP; version=2.3.7.7-AIRGAP-MDNAC; version=2.3.7.7-VA; version=2.3.7.9; version=2.3.7.9-70301-GSMU10; version=2.3.7.9.75403.10-VA; version=2.3.7.9-75403-GSMU10; version=2.3.7.9-75403-SMU10; version=2.3.7.9-AIRGAP; version=2.3.7.9-AIRGAP-MDNAC; version=2.3.7.9-VA

Published CVSS scores

4.7CiscoCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

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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