CVE-2018-4990

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 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: 36%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed services: Not assessed

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

Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Double Free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.

CVSS v3
8.8
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
36%
EPSS %ILE
98th
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

July 9, 2018

Last Modified

October 23, 2025

Advisory Details (3)

Auto-updated Jun 1, 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-2018-4990
generic
http://www.securitytracker.com/id/1040920
generic
http://www.securityfocus.com/bid/104167

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 48× in last 7d / 224× 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 965 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2018-4990?
CVE-2018-4990 is a critical vulnerability published on July 9, 2018. Adobe Acrobat and Reader versions 2018.011.20038 and earlier, 2017.011.30079 and earlier, and 2015.006.30417 and earlier have a Double Free vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.
When was CVE-2018-4990 disclosed?
CVE-2018-4990 was first published on July 9, 2018, 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-2018-4990 actively exploited?
Yes. CISA added CVE-2018-4990 to the Known Exploited Vulnerabilities catalog on June 8, 2022, affecting Adobe Acrobat and Reader. 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-2018-4990?
CVE-2018-4990 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2018-4990?
CVE-2018-4990 affects Adobe Acrobat and Reader.
How do I remediate CVE-2018-4990?
No fix for CVE-2018-4990 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-2018-4990

Explore →

Is Your Infrastructure Affected by CVE-2018-4990?

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

Book a Demo →Browse All CVEs