CVE-2016-7201

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 2022-03-28), 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, 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: 80%CVSS: 8.8Exploit: cisa kev · ssvc active · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

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

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

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
80%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

November 10, 2016

Last Modified

June 17, 2026

Advisory Details (5)

Auto-updated May 2, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic
http://www.securityfocus.com/bid/94038
generic🟡 PoC Available

Microsoft Edge (Windows 10) - 'chakra.dll' Information Leak / Type Confusion Remote Code Execution - Windows remote Exploit

https://www.exploit-db.com/exploits/40990/
generic🟡 PoC Available

Microsoft Edge - 'FillFromPrototypes' Type Confusion - Windows dos Exploit

https://www.exploit-db.com/exploits/40784/
generic🟡 PoC Available

GitHub - theori-io/chakra-2016-11: Proof-of-Concept exploit for Edge bugs (CVE-2016-7200 & CVE-2016-7201) · GitHub

https://github.com/theori-io/chakra-2016-11
generic

Microsoft Security Bulletin MS16-129 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129

Affected Packages

(1 across 1 ecosystem)
NuGet(1)
PackageVulnerable rangeFixed inDependents
Microsoft.ChakraCore1.2.0, 1.2.11.2.2—

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 36× in last 7d / 190× 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 389 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-40990
    First seen Jan 5, 2017

    Microsoft Edge (Windows 10) - 'chakra.dll' Information Leak / Type Confusion Remote Code Execution

    Open source ↗
  • Exploit-DBEDB-40784✓ verified
    First seen Nov 18, 2016

    Microsoft Edge - 'FillFromPrototypes' Type Confusion

    Open source ↗

Frequently asked(6)

What is CVE-2016-7201?
CVE-2016-7201 is a critical vulnerability published on November 10, 2016. The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7202,…
When was CVE-2016-7201 disclosed?
CVE-2016-7201 was first published in the National Vulnerability Database on November 10, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-7201 actively exploited?
Yes. CISA added CVE-2016-7201 to the Known Exploited Vulnerabilities catalog on March 28, 2022, affecting Microsoft Edge. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-7201?
CVE-2016-7201 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-2016-7201?
CVE-2016-7201 affects Microsoft Edge. 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-2016-7201?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7201, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-7201

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