CVE-2026-76464

Unspecified impact from buffer-management flaws

Published Oct 7, 2026 · Updated Oct 7, 2026

Buffer-management flaws in Cisco Meraki MV, MX, MR, and Campus Gateway software affect appliances through undisclosed vectors. Cisco has not published the affected code paths, the operations that mishandle buffers, or the resulting impact for this CVE. The required access, configuration, and attacker privileges therefore remain unknown; the available notice does not establish a vulnerability-specific network probe.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Buffer-management flaws in Cisco Meraki MV, MX, MR, and Campus Gateway software affect appliances through undisclosed vectors. Cisco has not published the affected code paths, the operations that mishandle buffers, or the resulting impact for this CVE. The required access, configuration, and attacker privileges therefore remain unknown; the available notice does not establish a vulnerability-specific network probe.

The record

CVE
CVE-2026-76464
Published
Oct 7, 2026
Updated
Oct 7, 2026
Vendor
Clam AntiVirus
Product
Cisco Meraki MV Firmware
Classifications
CWE-119
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2026Record 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=2.0
  2. Affected versionversion=2.1
  3. Affected versionversion=2.2
  4. Affected versionversion=3.0
  5. Affected versionversion=3.1
  6. Affected versionversion=3.10
  7. Affected versionversion=3.11
  8. Affected versionversion=3.12
  9. Affected versionversion=3.13
  10. Affected versionversion=3.14
  11. Affected versionversion=3.15
  12. Affected versionversion=3.16
  13. Affected versionversion=3.17
  14. Affected versionversion=3.18
  15. Affected versionversion=3.19
  16. Affected versionversion=3.2
  17. Affected versionversion=3.20
  18. Affected versionversion=3.21
  19. Affected versionversion=3.22
  20. Affected versionversion=3.23
  21. Affected versionversion=3.24
  22. Affected versionversion=3.25
  23. Affected versionversion=3.26
  24. Affected versionversion=3.27
  25. Affected versionversion=3.28
  26. Affected versionversion=3.29
  27. Affected versionversion=3.3
  28. Affected versionversion=3.30
  29. Affected versionversion=3.31
  30. Affected versionversion=3.32
  31. Affected versionversion=3.33
  32. Affected versionversion=3.34
  33. Affected versionversion=3.35
  34. Affected versionversion=3.36
  35. Affected versionversion=3.4
  36. Affected versionversion=3.5
  37. Affected versionversion=3.6
  38. Affected versionversion=3.7
  39. Affected versionversion=3.8
  40. Affected versionversion=3.9
  41. Affected versionversion=4.0
  42. Affected versionversion=4.1
  43. Affected versionversion=4.10
  44. Affected versionversion=4.11
  45. Affected versionversion=4.12
  46. Affected versionversion=4.13
  47. Affected versionversion=4.14
  48. Affected versionversion=4.15
  49. Affected versionversion=4.16
  50. Affected versionversion=4.17
  51. Affected versionversion=4.18
  52. Affected versionversion=4.18.1
  53. Affected versionversion=4.19
  54. Affected versionversion=4.2
  55. Affected versionversion=4.20
  56. Affected versionversion=4.3
  57. Affected versionversion=4.4
  58. Affected versionversion=4.5
  59. Affected versionversion=4.6
  60. Affected versionversion=4.7
  61. Affected versionversion=4.8
  62. Affected versionversion=4.9
  63. Affected versionversion=5.0
  64. Affected versionversion=5.1
  65. Affected versionversion=5.2
  66. Affected versionversion=5.3
  67. Affected versionversion=5.4
  68. Affected versionversion=5.4.1
  69. Affected versionversion=5.5
  70. Affected versionversion=5.5.1
  71. Affected versionversion=5.6
  72. Affected versionversion=5.6.1
  73. Affected versionversion=5.6.2
  74. Affected versionversion=6.0
  75. Affected versionversion=6.0.1
  76. Affected versionversion=6.0.2
  77. Affected versionversion=6.1
  78. Affected versionversion=6.1.1
  79. Affected versionversion=6.1.2
  80. Affected versionversion=6.2
  81. Affected versionversion=6.2.1
  82. Affected versionversion=6.2.2
  83. Affected versionversion=6.3
  84. Affected versionversion=6.3.2
  85. Affected versionversion=MV 7.2.1
  86. Affected versionversion=MV 7.2.2
  87. Affected versionversion=MV 7.3
  88. Affected versionversion=MV 7.3.1
  89. Affected versionversion=MV 7.3.2

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Clam AntiVirus · Cisco Meraki MV Firmwareversion=2.0; version=2.1; version=2.2; version=3.0; version=3.1; version=3.10; version=3.11; version=3.12; version=3.13; version=3.14; version=3.15; version=3.16; version=3.17; version=3.18; version=3.19; version=3.2; version=3.20; version=3.21; version=3.22; version=3.23; version=3.24; version=3.25; version=3.26; version=3.27; version=3.28; version=3.29; version=3.3; version=3.30; version=3.31; version=3.32; version=3.33; version=3.34; version=3.35; version=3.36; version=3.4; version=3.5; version=3.6; version=3.7; version=3.8; version=3.9; version=4.0; version=4.1; version=4.10; version=4.11; version=4.12; version=4.13; version=4.14; version=4.15; version=4.16; version=4.17; version=4.18; version=4.18.1; version=4.19; version=4.2; version=4.20; version=4.3; version=4.4; version=4.5; version=4.6; version=4.7; version=4.8; version=4.9; version=5.0; version=5.1; version=5.2; version=5.3; version=5.4; version=5.4.1; version=5.5; version=5.5.1; version=5.6; version=5.6.1; version=5.6.2; version=6.0; version=6.0.1; version=6.0.2; version=6.1; version=6.1.1; version=6.1.2; version=6.2; version=6.2.1; version=6.2.2; version=6.3; version=6.3.2; version=MV 7.2.1; version=MV 7.2.2; version=MV 7.3; version=MV 7.3.1; version=MV 7.3.2
Clam AntiVirus · Cisco Meraki MX Firmwareversion=16.2; version=16.3; version=16.4; version=16.5; version=16.6; version=17.10; version=17.3; version=17.6; version=17.7; version=17.8; version=17.9; version=18.1; version=18.2; version=19.1; version=MX 18.211.2; version=MX 19.2.8; version=MX 26.1.4; version=MX 26.1.5; version=MX 26.1.6; version=MX 26.2.1; version=MX 26.2.2
Clam AntiVirus · Cisco Meraki MR Wireless Access Points Softwareversion=MR 30.6; version=MR 32.1.7; version=MR 32.2.3; version=MR 32.2.4; version=MR 33.1.1; version=MR 33.1.2
Clam AntiVirus · Cisco Campus Gateway Softwareversion=CG 33.1.3

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

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

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started