CVE-2022-20917Public exploitNetwork attack vector

Message manipulation via nested XMPP stanza smuggling

Published Sep 15, 2023 · Updated Sep 25, 2024

XMPP stanza smuggling in Cisco Jabber allows remote authenticated users to alter messages and trigger unsafe client actions. The modified Gloox parser resets its XML parsing state for a nested closing stream:stream tag, causing subsequent attacker-controlled elements to be treated as root-level control stanzas. Exploitation requires access to the client’s XMPP server and the ability to message the client; phone-only and team-messaging modes are not affected.

CVSS severity4.3
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XMPP stanza smuggling in Cisco Jabber allows remote authenticated users to alter messages and trigger unsafe client actions. The modified Gloox parser resets its XML parsing state for a nested closing stream:stream tag, causing subsequent attacker-controlled elements to be treated as root-level control stanzas. Exploitation requires access to the client’s XMPP server and the ability to message the client; phone-only and team-messaging modes are not affected.

The record

CVE
CVE-2022-20917
Published
Sep 15, 2023
Updated
Sep 25, 2024
Vendor
ClamAV
Product
Cisco Jabber
Classifications
CWE-668, T1565.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=10.5(0)
  2. Affected versionversion=10.5(1)
  3. Affected versionversion=10.5(2)
  4. Affected versionversion=10.5(3)
  5. Affected versionversion=10.5(4)
  6. Affected versionversion=10.5(5)
  7. Affected versionversion=10.5(6)
  8. Affected versionversion=10.6(0)
  9. Affected versionversion=10.6(1)
  10. Affected versionversion=10.6(10)
  11. Affected versionversion=10.6(11)
  12. Affected versionversion=10.6(12)
  13. Affected versionversion=10.6(2)
  14. Affected versionversion=10.6(3)
  15. Affected versionversion=10.6(4)
  16. Affected versionversion=10.6(5)
  17. Affected versionversion=10.6(6)
  18. Affected versionversion=10.6(7)
  19. Affected versionversion=10.6(8)
  20. Affected versionversion=10.6(9)
  21. Affected versionversion=11.0(0)
  22. Affected versionversion=11.0(1)
  23. Affected versionversion=11.0(2)
  24. Affected versionversion=11.1(0)
  25. Affected versionversion=11.1(1)
  26. Affected versionversion=11.1(2)
  27. Affected versionversion=11.1(3)
  28. Affected versionversion=11.1(4)
  29. Affected versionversion=11.2(0)
  30. Affected versionversion=11.2(1)
  31. Affected versionversion=11.5(0)
  32. Affected versionversion=11.5(1)
  33. Affected versionversion=11.5(2)
  34. Affected versionversion=11.5(3)
  35. Affected versionversion=11.5(4)
  36. Affected versionversion=11.5(5)
  37. Affected versionversion=11.5(6)
  38. Affected versionversion=11.6(0)
  39. Affected versionversion=11.6(1)
  40. Affected versionversion=11.6(2)
  41. Affected versionversion=11.6(3)
  42. Affected versionversion=11.6(4)
  43. Affected versionversion=11.7(0)
  44. Affected versionversion=11.7(1)
  45. Affected versionversion=11.7(2)
  46. Affected versionversion=11.8(0)
  47. Affected versionversion=11.8(1)
  48. Affected versionversion=11.8(2)
  49. Affected versionversion=11.8(3)
  50. Affected versionversion=11.8(4)
  51. Affected versionversion=11.8(5)
  52. Affected versionversion=11.9(0)
  53. Affected versionversion=11.9(1)
  54. Affected versionversion=11.9(2)
  55. Affected versionversion=11.9(3)
  56. Affected versionversion=12.0(0)
  57. Affected versionversion=12.0(1)
  58. Affected versionversion=12.1(0)
  59. Affected versionversion=12.1(1)
  60. Affected versionversion=12.1(2)
  61. Affected versionversion=12.1(3)
  62. Affected versionversion=12.1(4)
  63. Affected versionversion=12.1(5)
  64. Affected versionversion=12.5(0)
  65. Affected versionversion=12.5(1)
  66. Affected versionversion=12.5(2)
  67. Affected versionversion=12.5(3)
  68. Affected versionversion=12.5(4)
  69. Affected versionversion=12.6(0)
  70. Affected versionversion=12.6(1)
  71. Affected versionversion=12.6(2)
  72. Affected versionversion=12.6(3)
  73. Affected versionversion=12.6(4)
  74. Affected versionversion=12.6(5)
  75. Affected versionversion=12.7(0)
  76. Affected versionversion=12.7(1)
  77. Affected versionversion=12.7(2)
  78. Affected versionversion=12.7(3)
  79. Affected versionversion=12.7(4)
  80. Affected versionversion=12.7(5)
  81. Affected versionversion=12.8(0)
  82. Affected versionversion=12.8(1)
  83. Affected versionversion=12.8(2)
  84. Affected versionversion=12.8(3)
  85. Affected versionversion=12.8(4)
  86. Affected versionversion=12.8(5)
  87. Affected versionversion=12.8(6)
  88. Affected versionversion=12.8(7)
  89. Affected versionversion=12.9(0)
  90. Affected versionversion=12.9(1)
  91. Affected versionversion=12.9(2)
  92. Affected versionversion=12.9(3)
  93. Affected versionversion=12.9(4)
  94. Affected versionversion=12.9(5)
  95. Affected versionversion=12.9(6)
  96. Affected versionversion=14.0(0)
  97. Affected versionversion=14.0(1)
  98. Affected versionversion=14.0(2)
  99. Affected versionversion=14.0(3)
  100. Affected versionversion=14.0(4)
  101. Affected versionversion=14.1(0)
  102. Affected versionversion=14.1(1)
  103. Affected versionversion=14.1(2)
  104. Affected versionversion=8.6(1)
  105. Affected versionversion=8.6(2)
  106. Affected versionversion=8.6(3)
  107. Affected versionversion=8.6(4)
  108. Affected versionversion=8.6(5)
  109. Affected versionversion=8.6(6)
  110. Affected versionversion=8.6(7)
  111. Affected versionversion=9.0(1)
  112. Affected versionversion=9.0(2)
  113. Affected versionversion=9.0(3)
  114. Affected versionversion=9.0(4)
  115. Affected versionversion=9.0(5)
  116. Affected versionversion=9.1(0)
  117. Affected versionversion=9.1(1)
  118. Affected versionversion=9.1(2)
  119. Affected versionversion=9.1(3)
  120. Affected versionversion=9.1(4)
  121. Affected versionversion=9.1(5)
  122. Affected versionversion=9.2(0)
  123. Affected versionversion=9.2(1)
  124. Affected versionversion=9.2(2)
  125. Affected versionversion=9.2(3)
  126. Affected versionversion=9.2(4)
  127. Affected versionversion=9.2(5)
  128. Affected versionversion=9.2(6)
  129. Affected versionversion=9.2(7)
  130. Affected versionversion=9.3(1)
  131. Affected versionversion=9.3(2)
  132. Affected versionversion=9.5(0)
  133. Affected versionversion=9.6(0)
  134. Affected versionversion=9.6(1)
  135. Affected versionversion=9.6(2)
  136. Affected versionversion=9.6(3)
  137. Affected versionversion=9.6(4)
  138. Affected versionversion=9.7(0)
  139. Affected versionversion=9.7(1)
  140. Affected versionversion=9.7(2)
  141. Affected versionversion=9.7(3)
  142. Affected versionversion=9.7(4)
  143. Affected versionversion=9.7(5)
  144. Affected versionversion=9.7(6)
  145. Affected versionversion=9.7(7)
  146. Affected versionversion=Jabber For Windows

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Jabberversion=10.5(0); version=10.5(1); version=10.5(2); version=10.5(3); version=10.5(4); version=10.5(5); version=10.5(6); version=10.6(0); version=10.6(1); version=10.6(10); version=10.6(11); version=10.6(12); version=10.6(2); version=10.6(3); version=10.6(4); version=10.6(5); version=10.6(6); version=10.6(7); version=10.6(8); version=10.6(9); version=11.0(0); version=11.0(1); version=11.0(2); version=11.1(0); version=11.1(1); version=11.1(2); version=11.1(3); version=11.1(4); version=11.2(0); version=11.2(1); version=11.5(0); version=11.5(1); version=11.5(2); version=11.5(3); version=11.5(4); version=11.5(5); version=11.5(6); version=11.6(0); version=11.6(1); version=11.6(2); version=11.6(3); version=11.6(4); version=11.7(0); version=11.7(1); version=11.7(2); version=11.8(0); version=11.8(1); version=11.8(2); version=11.8(3); version=11.8(4); version=11.8(5); version=11.9(0); version=11.9(1); version=11.9(2); version=11.9(3); version=12.0(0); version=12.0(1); version=12.1(0); version=12.1(1); version=12.1(2); version=12.1(3); version=12.1(4); version=12.1(5); version=12.5(0); version=12.5(1); version=12.5(2); version=12.5(3); version=12.5(4); version=12.6(0); version=12.6(1); version=12.6(2); version=12.6(3); version=12.6(4); version=12.6(5); version=12.7(0); version=12.7(1); version=12.7(2); version=12.7(3); version=12.7(4); version=12.7(5); version=12.8(0); version=12.8(1); version=12.8(2); version=12.8(3); version=12.8(4); version=12.8(5); version=12.8(6); version=12.8(7); version=12.9(0); version=12.9(1); version=12.9(2); version=12.9(3); version=12.9(4); version=12.9(5); version=12.9(6); version=14.0(0); version=14.0(1); version=14.0(2); version=14.0(3); version=14.0(4); version=14.1(0); version=14.1(1); version=14.1(2); version=8.6(1); version=8.6(2); version=8.6(3); version=8.6(4); version=8.6(5); version=8.6(6); version=8.6(7); version=9.0(1); version=9.0(2); version=9.0(3); version=9.0(4); version=9.0(5); version=9.1(0); version=9.1(1); version=9.1(2); version=9.1(3); version=9.1(4); version=9.1(5); version=9.2(0); version=9.2(1); version=9.2(2); version=9.2(3); version=9.2(4); version=9.2(5); version=9.2(6); version=9.2(7); version=9.3(1); version=9.3(2); version=9.5(0); version=9.6(0); version=9.6(1); version=9.6(2); version=9.6(3); version=9.6(4); version=9.7(0); version=9.7(1); version=9.7(2); version=9.7(3); version=9.7(4); version=9.7(5); version=9.7(6); version=9.7(7); version=Jabber For Windows

Published CVSS scores

4.3Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-668Exposure of Resource to Wrong Sphere
T1565.002Transmitted Data Manipulation

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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