CVE-2026-20062

Cross-context file read and overwrite via SCP

Published Mar 4, 2026 · Updated Mar 4, 2026

Authorization bypass in Cisco Adaptive Security Appliance Software allows local users to read or overwrite files across security contexts. The CLI fails to enforce the destination context boundary when the CiscoSSH stack processes crafted SCP copy commands from a non-admin context. Exploitation requires multiple-context mode, CiscoSSH enabled, valid administrative credentials for a non-admin context, and the exact target path; file enumeration and cross-context service interruption are unavailable.

CVSS severity7.2
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Cisco Adaptive Security Appliance Software allows local users to read or overwrite files across security contexts. The CLI fails to enforce the destination context boundary when the CiscoSSH stack processes crafted SCP copy commands from a non-admin context. Exploitation requires multiple-context mode, CiscoSSH enabled, valid administrative credentials for a non-admin context, and the exact target path; file enumeration and cross-context service interruption are unavailable.

The record

CVE
CVE-2026-20062
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
ClamAV
Product
Cisco Adaptive Security Appliance (ASA) Software
Classifications
CWE-279, T1005, T1565.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 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=9.17.1
  2. Affected versionversion=9.17.1.10
  3. Affected versionversion=9.17.1.11
  4. Affected versionversion=9.17.1.13
  5. Affected versionversion=9.17.1.15
  6. Affected versionversion=9.17.1.20
  7. Affected versionversion=9.17.1.30
  8. Affected versionversion=9.17.1.33
  9. Affected versionversion=9.17.1.39
  10. Affected versionversion=9.17.1.45
  11. Affected versionversion=9.17.1.46
  12. Affected versionversion=9.17.1.7
  13. Affected versionversion=9.17.1.9
  14. Affected versionversion=9.18.1
  15. Affected versionversion=9.18.1.3
  16. Affected versionversion=9.18.2
  17. Affected versionversion=9.18.2.5
  18. Affected versionversion=9.18.2.7
  19. Affected versionversion=9.18.2.8
  20. Affected versionversion=9.18.3
  21. Affected versionversion=9.18.3.39
  22. Affected versionversion=9.18.3.46
  23. Affected versionversion=9.18.3.53
  24. Affected versionversion=9.18.3.55
  25. Affected versionversion=9.18.3.56
  26. Affected versionversion=9.18.4
  27. Affected versionversion=9.18.4.22
  28. Affected versionversion=9.18.4.24
  29. Affected versionversion=9.18.4.29
  30. Affected versionversion=9.18.4.34
  31. Affected versionversion=9.18.4.40
  32. Affected versionversion=9.18.4.47
  33. Affected versionversion=9.18.4.5
  34. Affected versionversion=9.18.4.50
  35. Affected versionversion=9.18.4.52
  36. Affected versionversion=9.18.4.53
  37. Affected versionversion=9.18.4.57
  38. Affected versionversion=9.18.4.8
  39. Affected versionversion=9.19.1
  40. Affected versionversion=9.19.1.12
  41. Affected versionversion=9.19.1.18
  42. Affected versionversion=9.19.1.22
  43. Affected versionversion=9.19.1.24
  44. Affected versionversion=9.19.1.27
  45. Affected versionversion=9.19.1.28
  46. Affected versionversion=9.19.1.31
  47. Affected versionversion=9.19.1.37
  48. Affected versionversion=9.19.1.38
  49. Affected versionversion=9.19.1.42
  50. Affected versionversion=9.19.1.5
  51. Affected versionversion=9.19.1.9
  52. Affected versionversion=9.20.1
  53. Affected versionversion=9.20.1.5
  54. Affected versionversion=9.20.2
  55. Affected versionversion=9.20.2.10
  56. Affected versionversion=9.20.2.21
  57. Affected versionversion=9.20.2.22
  58. Affected versionversion=9.20.3
  59. Affected versionversion=9.20.3.10
  60. Affected versionversion=9.20.3.13
  61. Affected versionversion=9.20.3.16
  62. Affected versionversion=9.20.3.20
  63. Affected versionversion=9.20.3.4
  64. Affected versionversion=9.20.3.7
  65. Affected versionversion=9.20.3.9
  66. Affected versionversion=9.22.1.1
  67. Affected versionversion=9.22.1.2
  68. Affected versionversion=9.22.1.3
  69. Affected versionversion=9.22.1.6
  70. Affected versionversion=9.22.2
  71. Affected versionversion=9.22.2.4
  72. Affected versionversion=9.23.1
  73. Affected versionversion=9.23.1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

ClamAV · Cisco Adaptive Security Appliance (ASA) Softwareversion=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=9.17.1.39; version=9.17.1.45; version=9.17.1.46; 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=9.18.4.22; version=9.18.4.24; version=9.18.4.29; version=9.18.4.34; version=9.18.4.40; version=9.18.4.47; version=9.18.4.5; version=9.18.4.50; version=9.18.4.52; version=9.18.4.53; version=9.18.4.57; 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=9.19.1.28; version=9.19.1.31; version=9.19.1.37; version=9.19.1.38; version=9.19.1.42; version=9.19.1.5; version=9.19.1.9; version=9.20.1; version=9.20.1.5; version=9.20.2; version=9.20.2.10; version=9.20.2.21; version=9.20.2.22; version=9.20.3; version=9.20.3.10; version=9.20.3.13; version=9.20.3.16; version=9.20.3.20; version=9.20.3.4; version=9.20.3.7; version=9.20.3.9; version=9.22.1.1; version=9.22.1.2; version=9.22.1.3; version=9.22.1.6; version=9.22.2; version=9.22.2.4; version=9.23.1; version=9.23.1.3

Published CVSS scores

7.2CiscoCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-279Incorrect Execution-Assigned Permissions
T1005Data from Local System
T1565.001Stored Data Manipulation

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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