CVE-2020-3153

MEDIUMNVD 6.59.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-10-24), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.5 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
6.5
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 28%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system directory. An exploit could allow the attacker to copy malicious files to arbitrary locations with system level privileges. This could include DLL pre-loading, DLL hijacking, and other related attacks. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.

CVSS v3
6.5
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
97.9%
KEV
⚠ Exploited

Published

February 19, 2020

Last Modified

October 28, 2025

Advisory Details (4)

Auto-updated Jun 12, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path Vulnerability

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ac-win-path-traverse-qO4HWBsj
generic

Full Disclosure: Cisco AnyConnect elevation of privileges due to insecure handling of path names

http://seclists.org/fulldisclosure/2020/Apr/43
generic

Packet Storm

http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/158219/Cisco-AnyConnect-Path-Traversal-Privilege-Escalation.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 58× in last 7d / 230× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 416 total refreshes for this CVE.

  1. 2026-07-23 01:52 UTCEG score recompute
  2. 2026-07-22 21:58 UTCEG score recompute
  3. 2026-07-22 21:57 UTCGHSA enrichment
  4. 2026-07-22 19:40 UTCCISA KEV update
  5. 2026-07-22 17:53 UTCEG score recompute
  6. 2026-07-22 17:52 UTCGHSA enrichment
  7. 2026-07-22 14:05 UTCEPSS rescore
  8. 2026-07-22 13:49 UTCGHSA enrichment
  9. 2026-07-22 09:44 UTCGHSA enrichment
  10. 2026-07-22 05:40 UTCGHSA enrichment
  11. 2026-07-22 01:36 UTCGHSA enrichment
  12. 2026-07-21 21:32 UTCGHSA enrichment
  13. 2026-07-21 17:27 UTCEG score recompute
  14. 2026-07-21 17:27 UTCGHSA enrichment
  15. 2026-07-21 15:22 UTCEPSS rescore
  16. 2026-07-21 15:22 UTCEPSS rescore
  17. 2026-07-21 14:37 UTCCISA KEV update
  18. 2026-07-21 13:23 UTCGHSA enrichment
  19. 2026-07-21 09:19 UTCGHSA enrichment
  20. 2026-07-21 05:13 UTCGHSA enrichment
  21. 2026-07-21 01:08 UTCGHSA enrichment
  22. 2026-07-20 21:05 UTCEG score recompute
  23. 2026-07-20 21:05 UTCGHSA enrichment
  24. 2026-07-20 17:04 UTCEPSS rescore
  25. 2026-07-20 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-07-20 16:58 UTCGHSA enrichment
  2. 2026-07-20 12:54 UTCGHSA enrichment
  3. 2026-07-20 08:50 UTCGHSA enrichment
  4. 2026-07-20 04:47 UTCGHSA enrichment
  5. 2026-07-19 20:39 UTCGHSA enrichment
  6. 2026-07-19 16:35 UTCGHSA enrichment
  7. 2026-07-19 12:31 UTCGHSA enrichment
  8. 2026-07-19 08:24 UTCGHSA enrichment
  9. 2026-07-19 04:20 UTCEG score recompute
  10. 2026-07-19 04:20 UTCGHSA enrichment
  11. 2026-07-19 02:26 UTCEPSS rescore
  12. 2026-07-19 02:26 UTCEPSS rescore
  13. 2026-07-19 00:15 UTCGHSA enrichment
  14. 2026-07-18 20:11 UTCGHSA enrichment
  15. 2026-07-18 16:06 UTCGHSA enrichment
  16. 2026-07-18 12:02 UTCEG score recompute
  17. 2026-07-18 12:02 UTCGHSA enrichment
  18. 2026-07-18 07:58 UTCGHSA enrichment
  19. 2026-07-18 03:54 UTCGHSA enrichment
  20. 2026-07-17 23:50 UTCGHSA enrichment
  21. 2026-07-17 19:46 UTCGHSA enrichment
  22. 2026-07-17 15:42 UTCGHSA enrichment
  23. 2026-07-17 11:38 UTCGHSA enrichment
  24. 2026-07-17 07:33 UTCEG score recompute
  25. 2026-07-17 07:33 UTCGHSA enrichment
  26. 2026-07-17 03:29 UTCGHSA enrichment
  27. 2026-07-16 23:25 UTCGHSA enrichment
  28. 2026-07-16 19:21 UTCGHSA enrichment
  29. 2026-07-16 17:04 UTCCISA KEV update
  30. 2026-07-16 16:59 UTCEPSS rescore
  31. 2026-07-16 15:15 UTCGHSA enrichment
  32. 2026-07-16 11:11 UTCGHSA enrichment
  33. 2026-07-16 07:07 UTCGHSA enrichment
  34. 2026-07-16 03:03 UTCGHSA enrichment
  35. 2026-07-15 22:59 UTCGHSA enrichment
  36. 2026-07-15 18:55 UTCGHSA enrichment
  37. 2026-07-15 16:55 UTCEPSS rescore
  38. 2026-07-15 16:55 UTCEPSS rescore
  39. 2026-07-15 16:49 UTCCISA KEV update
  40. 2026-07-15 15:04 UTCCISA KEV update
  41. 2026-07-15 14:51 UTCGHSA enrichment
  42. 2026-07-15 10:47 UTCGHSA enrichment
  43. 2026-07-15 06:40 UTCGHSA enrichment
  44. 2026-07-15 02:36 UTCGHSA enrichment
  45. 2026-07-14 22:30 UTCGHSA enrichment
  46. 2026-07-14 18:26 UTCGHSA enrichment
  47. 2026-07-14 18:05 UTCCISA KEV update
  48. 2026-07-14 14:22 UTCGHSA enrichment
  49. 2026-07-14 10:18 UTCGHSA enrichment
  50. 2026-07-14 06:14 UTCGHSA enrichment
  51. 2026-07-14 02:10 UTCGHSA enrichment
  52. 2026-07-13 22:27 UTCEPSS rescore
  53. 2026-07-13 22:27 UTCEPSS rescore
  54. 2026-07-13 22:06 UTCGHSA enrichment
  55. 2026-07-13 18:02 UTCGHSA enrichment
  56. 2026-07-13 17:07 UTCCISA KEV update
  57. 2026-07-13 13:56 UTCGHSA enrichment
  58. 2026-07-13 09:52 UTCGHSA enrichment
  59. 2026-07-13 06:10 UTCEPSS rescore
  60. 2026-07-13 06:10 UTCEPSS rescore
  61. 2026-07-13 05:47 UTCGHSA enrichment
  62. 2026-07-13 01:43 UTCGHSA enrichment
  63. 2026-07-12 21:39 UTCGHSA enrichment
  64. 2026-07-12 17:34 UTCGHSA enrichment
  65. 2026-07-12 13:29 UTCGHSA enrichment
  66. 2026-07-12 09:24 UTCGHSA enrichment
  67. 2026-07-12 05:44 UTCEPSS rescore
  68. 2026-07-12 05:20 UTCGHSA enrichment
  69. 2026-07-12 01:16 UTCGHSA enrichment
  70. 2026-07-11 21:12 UTCGHSA enrichment
  71. 2026-07-11 17:08 UTCGHSA enrichment
  72. 2026-07-11 13:03 UTCGHSA enrichment
  73. 2026-07-11 08:58 UTCGHSA enrichment
  74. 2026-07-11 08:25 UTCEPSS rescore
  75. 2026-07-11 08:25 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/windows/local/anyconnect_lpe✓ verified
    First seen Aug 5, 2020

    Cisco AnyConnect Privilege Escalations (CVE-2020-3153 and CVE-2020-3433)

    Open source ↗
  • GitHub PoCgoichot/CVE-2020-3153
    First seen May 19, 2020

    Cisco AnyConnect < 4.8.02042 privilege escalation through path traversal

    Open source ↗
  • GitHub PoCshubham0d/CVE-2020-3153
    First seen May 4, 2020

    POC code for CVE-2020-3153 - Cisco anyconnect path traversal vulnerability

    Open source ↗

Frequently asked(6)

What is CVE-2020-3153?
CVE-2020-3153 is a medium vulnerability published on February 19, 2020. A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths.…
When was CVE-2020-3153 disclosed?
CVE-2020-3153 was first published in the National Vulnerability Database on February 19, 2020, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-3153 actively exploited?
Yes. CISA added CVE-2020-3153 to the Known Exploited Vulnerabilities catalog on October 24, 2022, affecting Cisco AnyConnect Secure. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-3153?
CVE-2020-3153 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2020-3153?
CVE-2020-3153 affects Cisco AnyConnect Secure. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-3153?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-3153, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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