CVE-2015-0311

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 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
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 86%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and 16.x through 16.0.0.287 on Windows and OS X and through 11.2.202.438 on Linux allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in January 2015.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
84(Attend)
EG Risk 84/100SSVC: 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
Severity98% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
86%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

January 23, 2015

Last Modified

April 21, 2026

Advisory Details (6)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62740
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62660
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62650
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62543
generic

About Secunia Research | Flexera

http://secunia.com/advisories/62432
generic

Unpatched Vulnerability (0day) in Flash Player is being exploited by Angler EK

http://malware.dontneedcoffee.com/2015/01/unpatched-vulnerability-0day-in-flash.html

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatflash-plugin-0:11.2.202.440-1.el62015-01-27redhat

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.

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 94× in last 7d / 345× 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 1,038 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-36360✓ verified
    First seen Mar 12, 2015

    Adobe Flash Player - ByteArray UncompressViaZlibVariant Use-After-Free (Metasploit)

    Open source ↗
  • Metasploitexploit/multi/browser/adobe_flash_uncompress_zlib_uaf✓ verified
    First seen Apr 28, 2014

    Adobe Flash Player ByteArray UncompressViaZlibVariant Use After Free

    Open source ↗

Frequently asked(6)

What is CVE-2015-0311?
CVE-2015-0311 is a critical vulnerability published on January 23, 2015. Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and 16.x through 16.0.0.287 on Windows and OS X and through 11.2.202.438 on Linux allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in January 2015.
When was CVE-2015-0311 disclosed?
CVE-2015-0311 was first published in the National Vulnerability Database on January 23, 2015, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-0311 actively exploited?
Yes. CISA added CVE-2015-0311 to the Known Exploited Vulnerabilities catalog on April 13, 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-2015-0311?
CVE-2015-0311 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2015-0311?
CVE-2015-0311 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-2015-0311?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-0311, 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.

Dependency Blast Radius

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