CVE-2013-0643

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 2024-09-17), 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: 11%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed services: Not assessed

A fix is available — apply it.

The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier for remote attackers to execute arbitrary code via crafted SWF content, as exploited in the wild in February 2013.

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
11%
EPSS %ILE
95th
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

February 27, 2013

Last Modified

April 21, 2026

Advisory Details (1)

Auto-updated May 2, 2026
Patch available.
generic
http://rhn.redhat.com/errata/RHSA-2013-0574.html

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatflash-plugin-0:11.2.202.273-1.el62013-02-27redhat

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 88× in last 7d / 397× 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 1,698 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2013-0643?
CVE-2013-0643 is a critical vulnerability published on February 27, 2013. The Firefox sandbox in Adobe Flash Player before 10.3.183.67 and 11.x before 11.6.602.171 on Windows and Mac OS X, and before 10.3.183.67 and 11.x before 11.2.202.273 on Linux, does not properly restrict privileges, which makes it easier for remote attackers to execute arbitrary code via crafted…
When was CVE-2013-0643 disclosed?
CVE-2013-0643 was first published on February 27, 2013, 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-2013-0643 actively exploited?
Yes. CISA added CVE-2013-0643 to the Known Exploited Vulnerabilities catalog on September 17, 2024, 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-2013-0643?
CVE-2013-0643 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-2013-0643?
CVE-2013-0643 affects Adobe Flash Player.
How do I remediate CVE-2013-0643?
A fix for CVE-2013-0643 is available: update to the fixed version the vendor names in its advisory.

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