CVE-2018-0798

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 2021-11-03), 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: 95%CVSS: 8.8Exploit: NoneExposed: 0

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

Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption 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
99.9%
KEV
⚠ Exploited

Published

January 10, 2018

Last Modified

October 28, 2025

Advisory Details (4)

Auto-updated Jun 2, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: microsoft, 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-2018-0798
microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0798
generic
http://www.securitytracker.com/id/1040153
generic
http://www.securityfocus.com/bid/102370

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 68× in last 7d / 335× 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 601 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2018-0798?
CVE-2018-0798 is a high vulnerability published on January 10, 2018. Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Office Memory Corruption Vulnerability".
When was CVE-2018-0798 disclosed?
CVE-2018-0798 was first published in the National Vulnerability Database on January 10, 2018, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-0798 actively exploited?
Yes. CISA added CVE-2018-0798 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Microsoft Office. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2018-0798?
CVE-2018-0798 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-2018-0798?
CVE-2018-0798 affects Microsoft Office. 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-2018-0798?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-0798, 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

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