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 — 4 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 services: Not assessed

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
9.0CRITICALhigh 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: A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.
EPSS PROB
25%
EPSS %ILE
97th
KEV
⚠ Exploited

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

A fix is available. Apply it within your standard update timelines at low, sooner than that at medium and as soon as possible at high mission impact.

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

November 1, 2016

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. Patch available.
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 / EcosystemFix (by version range) / 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 99× in last 7d / 448× 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 1,891 total refreshes for this CVE.

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

Related CVEs(same CWE)

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 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 attention. A fix is available. Apply it.
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 (CRITICAL).
Which products are affected by CVE-2016-7855?
CVE-2016-7855 affects Adobe Flash Player.
How do I remediate CVE-2016-7855?
A fix for CVE-2016-7855 is available: update to the fixed version the vendor names in its advisory.

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