CVE-2015-7645

CRITICALNVD 7.89.0
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

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 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
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) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 65%CVSS: 7.8Exploit: Exploit-DB (verified)Exposed services: Not assessed

A fix is available — apply it.

Adobe Flash Player 18.x through 18.0.0.252 and 19.x through 19.0.0.207 on Windows and OS X and 11.x through 11.2.202.535 on Linux allows remote attackers to execute arbitrary code via a crafted SWF file, as exploited in the wild in October 2015.

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

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 (value × EchelonGraph’s weight)
Severity90% × 45%
The EG Score, 9.0 of 10.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Attend at medium and Act at high mission impact.
Exploitation active (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
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
65%
EPSS %ILE
99th
KEV
⚠ Exploited

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days & forensic triage if the affected system is publicly exposed; 14 days if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“The impacted product is end-of-life and should be disconnected if still in use.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://nvd.nist.gov/vuln/detail/CVE-2015-7645

Published

October 15, 2015

Last Modified

April 22, 2026

Advisory Details (6)

Auto-updated Oct 12, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available.
Web page

CVE-2015-7645 - PSIRT.COM

http://www.securityfocus.com/bid/77081
Web page
http://rhn.redhat.com/errata/RHSA-2015-2024.html
Web page
http://rhn.redhat.com/errata/RHSA-2015-1913.html
Web page

Packet Storm

http://packetstormsecurity.com/files/134009/Adobe-Flash-IExternalizable.writeExternal-Type-Confusion.html
Web page
http://www.securitytracker.com/id/1033850
Web page

Research, News, and Perspectives | Trend Micro (US)

http://blog.trendmicro.com/trendlabs-security-intelligence/new-adobe-flash-zero-day-used-in-pawn-storm-campaign/

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatflash-plugin-0:11.2.202.548-1.el52015-11-11redhat
redhatflash-plugin-0:11.2.202.540-1.el6_72015-10-16redhat

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.

All Vendor Advisories

(2)

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 87× in last 7d / 385× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,717 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,617 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 08:26 UTCVendor advisory
  2. 2026-10-12 08:25 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  3. 2026-10-12 04:08 UTCVendor advisory
  4. 2026-10-12 04:08 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-11 23:52 UTCVendor advisory
  6. 2026-10-11 23:52 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-11 19:33 UTCEG score recompute
  8. 2026-10-11 19:33 UTCVendor advisory
  9. 2026-10-11 19:32 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  10. 2026-10-11 15:15 UTCEG score recompute
  11. 2026-10-11 15:15 UTCVendor advisory
  12. 2026-10-11 15:15 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  13. 2026-10-11 13:40 UTCEPSS rescoreEPSS 65% · 99th percentile
  14. 2026-10-11 10:59 UTCVendor advisory
  15. 2026-10-11 10:59 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-11 06:43 UTCVendor advisory
  17. 2026-10-11 06:43 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  18. 2026-10-11 02:27 UTCVendor advisory
  19. 2026-10-11 02:27 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  20. 2026-10-10 22:11 UTCEG score recompute
  21. 2026-10-10 22:11 UTCVendor advisory
  22. 2026-10-10 22:10 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-10-10 19:54 UTCEPSS rescoreEPSS 65% · 99th percentile
  24. 2026-10-10 17:47 UTCVendor advisory
  25. 2026-10-10 17:47 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
Show 75 more
  1. 2026-10-10 13:31 UTCVendor advisory
  2. 2026-10-10 13:31 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  3. 2026-10-10 09:13 UTCVendor advisory
  4. 2026-10-10 09:13 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  5. 2026-10-10 04:57 UTCVendor advisory
  6. 2026-10-10 04:56 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  7. 2026-10-10 00:40 UTCVendor advisory
  8. 2026-10-10 00:40 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-09 20:24 UTCEG score recompute
  10. 2026-10-09 20:24 UTCVendor advisory
  11. 2026-10-09 20:24 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-09 20:01 UTCEPSS rescoreEPSS 65% · 99th percentile
  13. 2026-10-09 16:08 UTCVendor advisory
  14. 2026-10-09 16:08 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-09 11:51 UTCVendor advisory
  16. 2026-10-09 11:51 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-09 07:35 UTCVendor advisory
  18. 2026-10-09 07:34 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-10-09 03:17 UTCVendor advisory
  20. 2026-10-09 03:17 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  21. 2026-10-08 23:01 UTCVendor advisory
  22. 2026-10-08 23:01 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  23. 2026-10-08 18:46 UTCVendor advisory
  24. 2026-10-08 18:46 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  25. 2026-10-08 14:29 UTCVendor advisory
  26. 2026-10-08 14:29 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  27. 2026-10-08 10:12 UTCVendor advisory
  28. 2026-10-08 10:12 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  29. 2026-10-08 05:55 UTCVendor advisory
  30. 2026-10-08 05:55 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  31. 2026-10-08 01:40 UTCEG score recompute
  32. 2026-10-08 01:40 UTCVendor advisory
  33. 2026-10-08 01:40 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  34. 2026-10-07 23:40 UTCEPSS rescoreEPSS 65% · 99th percentile
  35. 2026-10-07 21:24 UTCVendor advisory
  36. 2026-10-07 21:24 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  37. 2026-10-07 17:07 UTCVendor advisory
  38. 2026-10-07 17:07 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  39. 2026-10-07 12:48 UTCVendor advisory
  40. 2026-10-07 12:48 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  41. 2026-10-07 08:32 UTCVendor advisory
  42. 2026-10-07 08:32 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  43. 2026-10-07 04:16 UTCVendor advisory
  44. 2026-10-07 04:16 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  45. 2026-10-07 00:00 UTCVendor advisory
  46. 2026-10-07 00:00 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  47. 2026-10-06 19:44 UTCVendor advisory
  48. 2026-10-06 19:44 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  49. 2026-10-06 15:28 UTCEG score recompute
  50. 2026-10-06 15:28 UTCVendor advisory
  51. 2026-10-06 15:28 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  52. 2026-10-06 15:11 UTCEPSS rescoreEPSS 65% · 99th percentile
  53. 2026-10-06 11:12 UTCVendor advisory
  54. 2026-10-06 11:12 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-10-06 06:56 UTCVendor advisory
  56. 2026-10-06 06:56 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  57. 2026-10-06 02:39 UTCVendor advisory
  58. 2026-10-06 02:39 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-10-05 22:22 UTCVendor advisory
  60. 2026-10-05 22:22 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  61. 2026-10-05 18:05 UTCVendor advisory
  62. 2026-10-05 18:05 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-10-05 13:49 UTCVendor advisory
  64. 2026-10-05 13:49 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  65. 2026-10-05 09:33 UTCVendor advisory
  66. 2026-10-05 09:33 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  67. 2026-10-05 05:18 UTCVendor advisory
  68. 2026-10-05 05:18 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  69. 2026-10-05 01:02 UTCVendor advisory
  70. 2026-10-05 01:01 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  71. 2026-10-04 20:42 UTCVendor advisory
  72. 2026-10-04 20:42 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  73. 2026-10-04 16:26 UTCVendor advisory
  74. 2026-10-04 16:26 UTCGHSA enrichmentGHSA-67j3-p5pq-jgr7 · GitHub severity HIGH · GitHub CVSS 7.8
  75. 2026-10-04 12:10 UTCVendor advisory

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 Exploit-DB entry). Defenders should treat patch urgency accordingly.

  • Exploit-DBEDB-38490✓ verified
    Published Oct 19, 2015

    Adobe Flash - 'IExternalizable.writeExternal' Type Confusion

    Open source ↗

Related CVEs(same vendor)

Frequently asked(6)

What is CVE-2015-7645?
CVE-2015-7645 is a critical-severity vulnerability; its CVE record was published on October 15, 2015. Adobe Flash Player 18.x through 18.0.0.252 and 19.x through 19.0.0.207 on Windows and OS X and 11.x through 11.2.202.535 on Linux allows remote attackers to execute arbitrary code via a crafted SWF file, as exploited in the wild in October 2015.
When was CVE-2015-7645 made public?
CVE-2015-7645 was made public on October 14, 2015: that is the date its CVE record's CNA, Adobe Systems Incorporated, gives for when the vulnerability was made public. The CVE record itself was published on October 15, 2015. EchelonGraph's copy of the record carries a last-modified date of April 22, 2026; the record at its source may have been updated since.
Is CVE-2015-7645 actively exploited?
Yes. CISA added CVE-2015-7645 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-2015-7645?
CVE-2015-7645 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-2015-7645?
CVE-2015-7645 affects Adobe Flash Player.
How do I remediate CVE-2015-7645?
A fix for CVE-2015-7645 is available: update to the fixed version the vendor names in its advisory.

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