CVE-2015-2502

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 2022-04-13), 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: 39%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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

Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability," as exploited in the wild in August 2015.

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
39%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

August 19, 2015

Last Modified

April 22, 2026

Advisory Details (3)

Auto-updated May 2, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic
http://www.securityfocus.com/bid/76403
generic

Microsoft Security Bulletin MS15-093 - Critical | Microsoft Learn

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-093
generic🔴 Active Exploitation

Microsoft Issues Emergency Patch for Critical IE Flaw Exploited in the Wild - SecurityWeek

http://www.securityweek.com/microsoft-issues-emergency-patch-critical-ie-flaw-exploited-wild

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 42× in last 7d / 223× 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 482 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2015-2502?
CVE-2015-2502 is a critical vulnerability published on August 19, 2015. Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability," as exploited in the wild in August 2015.
When was CVE-2015-2502 disclosed?
CVE-2015-2502 was first published in the National Vulnerability Database on August 19, 2015, 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-2015-2502 actively exploited?
Yes. CISA added CVE-2015-2502 to the Known Exploited Vulnerabilities catalog on April 13, 2022, affecting Microsoft Internet Explorer. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2015-2502?
CVE-2015-2502 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-2015-2502?
CVE-2015-2502 affects Microsoft Internet Explorer. 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-2015-2502?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-2502, 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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