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 — 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: 11%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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
9.0(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
11%
EPSS %ILE
95%
KEV
⚠ Exploited

Published

February 27, 2013

Last Modified

April 21, 2026

Advisory Details (1)

Auto-updated May 2, 2026
No patch confirmed yet.
generic
http://rhn.redhat.com/errata/RHSA-2013-0574.html

Patch Availability(1)

Vendor / EcosystemFixed in / 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 96× in last 7d / 365× 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 1,100 total refreshes for this CVE.

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

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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 in the National Vulnerability Database 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 patching attention.
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.
Which products are affected by CVE-2013-0643?
CVE-2013-0643 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-2013-0643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-0643, 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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