CVE-2019-8605

CRITICALNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-06-27), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictMitigate nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 18%CVSS: 7.8Exploit: cisa kev · ssvc active · Exploit-DB (verified) · epss top5pct · public exploitExposed services: Not assessed

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

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. A malicious application may be able to execute arbitrary code with system privileges.

CVSS v3
7.8
EG Score
9.0CRITICALhigh confidence
EG Risk
81
EG Risk 81/100CISA SSVC

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%
CISA SSVC: Track at low, Attend at medium and Act at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact, and watch the vendor's advisory for the fix.
EPSS PROB
18%
EPSS %ILE
97th
KEV
⚠ Exploited

CISA SSVCTrack at low, Attend at medium and Act at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact, and watch the vendor's advisory for the fix.

Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 18, 2019

Last Modified

October 23, 2025

Advisory Details (5)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. No fix on record yet. Sources: cisa.
cisa🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-8605
generic

About the security content of watchOS 5.2.1 - Apple Support

https://support.apple.com/HT210122
generic

About the security content of tvOS 12.3 - Apple Support

https://support.apple.com/HT210120
generic

About the security content of macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra - Apple Support

https://support.apple.com/HT210119
generic

About the security content of iOS 12.3 - Apple Support

https://support.apple.com/HT210118

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 233× 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 991 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

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

  • Exploit-DBEDB-46892✓ verified
    First seen May 21, 2019

    Apple macOS < 10.14.5 / iOS < 12.3 XNU - 'in6_pcbdetach' Stale Pointer Use-After-Free

    Open source ↗
  • Exploit-DBEDB-47409
    First seen Sep 23, 2019

    iOS < 12.4.1 - 'Jailbreak' Local Privilege Escalation

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2019-8605?
CVE-2019-8605 is a critical vulnerability published on December 18, 2019. A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.3, macOS Mojave 10.14.5, tvOS 12.3, watchOS 5.2.1. A malicious application may be able to execute arbitrary code with system privileges.
When was CVE-2019-8605 disclosed?
CVE-2019-8605 was first published on December 18, 2019, with the most recent update on October 23, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-8605 actively exploited?
Yes. CISA added CVE-2019-8605 to the Known Exploited Vulnerabilities catalog on June 27, 2022, affecting Apple Multiple Products. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation, and watch the vendor's advisory for the fix.
What is the CVSS score of CVE-2019-8605?
CVE-2019-8605 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2019-8605?
CVE-2019-8605 affects Apple Multiple Products.
How do I remediate CVE-2019-8605?
No fix for CVE-2019-8605 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2019-8605

Explore →

Is Your Infrastructure Affected by CVE-2019-8605?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs