CVE-2016-7855

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 2022-03-03), 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 — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 25%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

A fix is available — apply it.

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

CVSS v3
8.8
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 PROB
25%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

November 1, 2016

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic
http://www.securityfocus.com/bid/93861
generic
http://rhn.redhat.com/errata/RHSA-2016-2119.html
generic🔴 Active Exploitation

Google Online Security Blog: Disclosing vulnerabilities to protect users

https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html
generic

Adobe Flash Player: Multiple vulnerabilities (GLSA 201610-10) — Gentoo security

https://security.gentoo.org/glsa/201610-10
generic

Microsoft Security Bulletin MS16-128 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-128

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatflash-plugin-0:11.2.202.643-1.el6_82016-10-27redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 106× in last 7d / 411× 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 1,213 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2016-7855?
CVE-2016-7855 is a critical vulnerability published on November 1, 2016. Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.
When was CVE-2016-7855 disclosed?
CVE-2016-7855 was first published in the National Vulnerability Database on November 1, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-7855 actively exploited?
Yes. CISA added CVE-2016-7855 to the Known Exploited Vulnerabilities catalog on March 3, 2022, affecting Adobe Flash Player. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-7855?
CVE-2016-7855 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.
Which products are affected by CVE-2016-7855?
CVE-2016-7855 affects Adobe Flash Player. 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-2016-7855?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7855, 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.

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