CVE-2024-20268Network attack vector

Authenticated device reload via malformed SNMP request

Published Oct 23, 2024 · Updated Oct 24, 2024

Denial of service in Cisco ASA and FTD Software allows remote authenticated users to reload affected devices with crafted SNMP requests. The SNMP packet-processing path insufficiently validates an IPv4 or IPv6 request before handling it, causing an unexpected device reload. Remote SNMP management must be enabled, and exploitation requires a valid community string for SNMPv1 or SNMPv2c or configured SNMPv3 user credentials.

CVSS severity7.7
High
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Cisco ASA and FTD Software allows remote authenticated users to reload affected devices with crafted SNMP requests. The SNMP packet-processing path insufficiently validates an IPv4 or IPv6 request before handling it, causing an unexpected device reload. Remote SNMP management must be enabled, and exploitation requires a valid community string for SNMPv1 or SNMPv2c or configured SNMPv3 user credentials.

The record

CVE
CVE-2024-20268
Published
Oct 23, 2024
Updated
Oct 24, 2024
Vendor
ClamAV
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-231, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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=9.14.1
  2. Affected versionversion=9.14.1.10
  3. Affected versionversion=9.14.1.15
  4. Affected versionversion=9.14.1.19
  5. Affected versionversion=9.14.1.30
  6. Affected versionversion=9.14.1.6
  7. Affected versionversion=9.14.2
  8. Affected versionversion=9.14.2.13
  9. Affected versionversion=9.14.2.15
  10. Affected versionversion=9.14.2.4
  11. Affected versionversion=9.14.2.8
  12. Affected versionversion=9.14.3
  13. Affected versionversion=9.14.3.1
  14. Affected versionversion=9.14.3.11
  15. Affected versionversion=9.14.3.13
  16. Affected versionversion=9.14.3.15
  17. Affected versionversion=9.14.3.18
  18. Affected versionversion=9.14.3.9
  19. Affected versionversion=9.14.4
  20. Affected versionversion=9.14.4.12
  21. Affected versionversion=9.14.4.13
  22. Affected versionversion=9.14.4.14
  23. Affected versionversion=9.14.4.15
  24. Affected versionversion=9.14.4.17
  25. Affected versionversion=9.14.4.22
  26. Affected versionversion=9.14.4.23
  27. Affected versionversion=9.14.4.24
  28. Affected versionversion=9.14.4.6
  29. Affected versionversion=9.14.4.7
  30. Affected versionversion=9.15.1
  31. Affected versionversion=9.15.1.1
  32. Affected versionversion=9.15.1.10
  33. Affected versionversion=9.15.1.15
  34. Affected versionversion=9.15.1.16
  35. Affected versionversion=9.15.1.17
  36. Affected versionversion=9.15.1.21
  37. Affected versionversion=9.15.1.7
  38. Affected versionversion=9.16.1
  39. Affected versionversion=9.16.1.28
  40. Affected versionversion=9.16.2
  41. Affected versionversion=9.16.2.11
  42. Affected versionversion=9.16.2.13
  43. Affected versionversion=9.16.2.14
  44. Affected versionversion=9.16.2.3
  45. Affected versionversion=9.16.2.7
  46. Affected versionversion=9.16.3
  47. Affected versionversion=9.16.3.14
  48. Affected versionversion=9.16.3.15
  49. Affected versionversion=9.16.3.19
  50. Affected versionversion=9.16.3.23
  51. Affected versionversion=9.16.3.3
  52. Affected versionversion=9.16.4
  53. Affected versionversion=9.16.4.14
  54. Affected versionversion=9.16.4.18
  55. Affected versionversion=9.16.4.19
  56. Affected versionversion=9.16.4.27
  57. Affected versionversion=9.16.4.38
  58. Affected versionversion=9.16.4.39
  59. Affected versionversion=9.16.4.42
  60. Affected versionversion=9.16.4.48
  61. Affected versionversion=9.16.4.9
  62. Affected versionversion=9.17.1
  63. Affected versionversion=9.17.1.10
  64. Affected versionversion=9.17.1.11
  65. Affected versionversion=9.17.1.13
  66. Affected versionversion=9.17.1.15
  67. Affected versionversion=9.17.1.20
  68. Affected versionversion=9.17.1.30
  69. Affected versionversion=9.17.1.33
  70. Affected versionversion=9.17.1.7
  71. Affected versionversion=9.17.1.9
  72. Affected versionversion=9.18.1
  73. Affected versionversion=9.18.1.3
  74. Affected versionversion=9.18.2
  75. Affected versionversion=9.18.2.5
  76. Affected versionversion=9.18.2.7
  77. Affected versionversion=9.18.2.8
  78. Affected versionversion=9.18.3
  79. Affected versionversion=9.18.3.39
  80. Affected versionversion=9.18.3.46
  81. Affected versionversion=9.18.3.53
  82. Affected versionversion=9.18.3.55
  83. Affected versionversion=9.18.3.56
  84. Affected versionversion=9.18.4
  85. Affected versionversion=9.18.4.5
  86. Affected versionversion=9.18.4.8
  87. Affected versionversion=9.19.1
  88. Affected versionversion=9.19.1.12
  89. Affected versionversion=9.19.1.18
  90. Affected versionversion=9.19.1.22
  91. Affected versionversion=9.19.1.24
  92. Affected versionversion=9.19.1.27
  93. Affected versionversion=9.19.1.5
  94. Affected versionversion=9.19.1.9
  95. Affected versionversion=9.20.1
  96. Affected versionversion=9.20.1.5
  97. Affected versionversion=9.20.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ClamAV · Cisco Adaptive Security Appliance (ASA) Softwareversion=9.14.1; version=9.14.1.10; version=9.14.1.15; version=9.14.1.19; version=9.14.1.30; version=9.14.1.6; version=9.14.2; version=9.14.2.13; version=9.14.2.15; version=9.14.2.4; version=9.14.2.8; version=9.14.3; version=9.14.3.1; version=9.14.3.11; version=9.14.3.13; version=9.14.3.15; version=9.14.3.18; version=9.14.3.9; version=9.14.4; version=9.14.4.12; version=9.14.4.13; version=9.14.4.14; version=9.14.4.15; version=9.14.4.17; version=9.14.4.22; version=9.14.4.23; version=9.14.4.24; version=9.14.4.6; version=9.14.4.7; version=9.15.1; version=9.15.1.1; version=9.15.1.10; version=9.15.1.15; version=9.15.1.16; version=9.15.1.17; version=9.15.1.21; version=9.15.1.7; version=9.16.1; version=9.16.1.28; version=9.16.2; version=9.16.2.11; version=9.16.2.13; version=9.16.2.14; version=9.16.2.3; version=9.16.2.7; version=9.16.3; version=9.16.3.14; version=9.16.3.15; version=9.16.3.19; version=9.16.3.23; version=9.16.3.3; version=9.16.4; version=9.16.4.14; version=9.16.4.18; version=9.16.4.19; version=9.16.4.27; version=9.16.4.38; version=9.16.4.39; version=9.16.4.42; version=9.16.4.48; version=9.16.4.9; version=9.17.1; version=9.17.1.10; version=9.17.1.11; version=9.17.1.13; version=9.17.1.15; version=9.17.1.20; version=9.17.1.30; version=9.17.1.33; version=9.17.1.7; version=9.17.1.9; version=9.18.1; version=9.18.1.3; version=9.18.2; version=9.18.2.5; version=9.18.2.7; version=9.18.2.8; version=9.18.3; version=9.18.3.39; version=9.18.3.46; version=9.18.3.53; version=9.18.3.55; version=9.18.3.56; version=9.18.4; version=9.18.4.5; version=9.18.4.8; version=9.19.1; version=9.19.1.12; version=9.19.1.18; version=9.19.1.22; version=9.19.1.24; version=9.19.1.27; version=9.19.1.5; version=9.19.1.9; version=9.20.1; version=9.20.1.5; version=9.20.2
ClamAV · Cisco Firepower Threat Defenseversion=6.6.0; version=6.6.0.1; version=6.6.1; version=6.6.3; version=6.6.4; version=6.6.5; version=6.6.5.1; version=6.6.5.2; version=6.6.7; version=6.6.7.1; version=6.6.7.2; version=6.7.0; version=6.7.0.1; version=6.7.0.2; version=6.7.0.3; version=7.0.0; version=7.0.0.1; version=7.0.1; version=7.0.1.1; version=7.0.2; version=7.0.2.1; version=7.0.3; version=7.0.4; version=7.0.5; version=7.0.6; version=7.0.6.1; version=7.1.0; version=7.1.0.1; version=7.1.0.2; version=7.1.0.3; version=7.2.0; version=7.2.0.1; version=7.2.1; version=7.2.2; version=7.2.3; version=7.2.4; version=7.2.4.1; version=7.2.5; version=7.2.5.1; version=7.2.5.2; version=7.3.0; version=7.3.1; version=7.3.1.1; version=7.3.1.2; version=7.4.0; version=7.4.1; version=7.4.1.1

Published CVSS scores

7.7CiscoCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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-231Improper Handling of Extra Values
T1499.004Application or System Exploitation

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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