CVE-2016-0034

HIGHNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-05-25), 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
8.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 59%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."

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
99.0%
KEV
⚠ Exploited

Published

January 13, 2016

Last Modified

April 22, 2026

Advisory Details (2)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-0034
generic

Microsoft Security Bulletin MS16-006 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-006

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 44× in last 7d / 216× 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 447 total refreshes for this CVE.

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

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Frequently asked(6)

What is CVE-2016-0034?
CVE-2016-0034 is a high vulnerability published on January 13, 2016. Microsoft Silverlight 5 before 5.1.41212.0 mishandles negative offsets during decoding, which allows remote attackers to execute arbitrary code or cause a denial of service (object-header corruption) via a crafted web site, aka "Silverlight Runtime Remote Code Execution Vulnerability."
When was CVE-2016-0034 disclosed?
CVE-2016-0034 was first published in the National Vulnerability Database on January 13, 2016, with the most recent update on April 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-0034 actively exploited?
Yes. CISA added CVE-2016-0034 to the Known Exploited Vulnerabilities catalog on May 25, 2022, affecting Microsoft Silverlight. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-0034?
CVE-2016-0034 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-2016-0034?
CVE-2016-0034 affects Microsoft Silverlight. 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-2016-0034?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-0034, 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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