CVE-2026-32201

CRITICALNVD 6.59.0
EchelonGraph scoreHIGH confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-04-14), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 6.5 retained for reference. The 9.0 is the floor for confirmed exploitation, not an impact rating: this CVE's impact severity (EG Severity) is CVSS 6.5 MEDIUM under GitHub Security Advisory CVSS. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: CISA Known Exploited Vulnerabilities catalog, EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekExploited in the wild

Also known asEUVD-2026-22587 (ENISA EUVD) · GHSA-jmj9-qm9w-hrqj (GitHub Security Advisories)Source: ENISA EUVD

9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV) — the reason this is sooner than the SSVC decision on this page at low or medium mission impact
CISA-KEV: ExploitedEPSS PROB: 43%CVSS: 6.5Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

CVSS v3
6.5
EG Score
9.0CRITICALhigh confidence
EG Risk
84
EG Risk 84/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation100% × 40%
Fixed at 100% for a CISA KEV listing: EchelonGraph's rule.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Attend at low or medium mission impact; Act at high (mission-essential systems).
Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it sooner than your standard update timelines at low or medium mission impact and as soon as possible at high.
EPSS PROB
43%
EPSS %ILE
98th
KEV
⚠ Exploited

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.0): severity, escalated by confirmed exploitation. This CVE's 9.0 is the CISA KEV floor for confirmed exploitation, not an impact rating: its impact severity (EG Severity) is CVSS 6.5 MEDIUM.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
43% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
CISA KEV and EG-KEV Tier 1 (exploited in the wild)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Attend at medium mission impactAttend at low or medium mission impact; Act at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 14 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Attend at low or medium mission impact; Act at high (mission-essential systems).

A fix is available. Apply it sooner than your standard update timelines at low or medium mission impact and as soon as possible at high.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 14 days if it is not.

In CISA KEV yes (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

CISA required action“Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.”

Quoted verbatim from CISA's Known Exploited Vulnerabilities catalog. CISA directs it at US federal civilian executive branch agencies under Binding Operational Directive (BOD) 26-04, which replaced BOD 22-01 on 10 June 2026; it is not EchelonGraph's advice. CISA's notes: https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32201 · https://nvd.nist.gov/vuln/detail/CVE-2026-32201

Published

April 14, 2026

Last Modified

October 26, 2026

Advisory Details (2)

Auto-updated Oct 26, 2026
⚠️ Actively exploited (CISA KEV, CISA Vulnrichment). Patch available. Sources: cisa, microsoft.
CISA🔴 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-2026-32201
Microsoft

Security Update Guide - Microsoft Security Response Center

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201

Vendor Advisories for CVE-2026-32201(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 227× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 1,921 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 1,821 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 23:54 UTCEG score recompute
  2. 2026-10-29 23:54 UTCVendor advisory
  3. 2026-10-29 23:54 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  4. 2026-10-29 16:33 UTCEPSS rescoreEPSS 43% · 98th percentile
  5. 2026-10-28 23:27 UTCEG score recompute
  6. 2026-10-28 23:26 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  7. 2026-10-28 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  8. 2026-10-27 22:55 UTCEG score recompute
  9. 2026-10-27 22:55 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  10. 2026-10-27 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
  11. 2026-10-26 22:27 UTCEG score recompute
  12. 2026-10-26 22:27 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  13. 2026-10-26 21:21 UTCEG score recompute
  14. 2026-10-26 21:21 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  15. 2026-10-25 20:52 UTCEG score recompute
  16. 2026-10-25 20:52 UTCVendor advisory
  17. 2026-10-25 20:52 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  18. 2026-10-25 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  19. 2026-10-25 14:36 UTCEG score recompute
  20. 2026-10-24 20:24 UTCEG score recompute
  21. 2026-10-24 20:24 UTCVendor advisory
  22. 2026-10-24 20:24 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  23. 2026-10-24 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  24. 2026-10-23 19:56 UTCEG score recompute
  25. 2026-10-23 19:56 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
Show 75 more
  1. 2026-10-23 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
  2. 2026-10-22 19:27 UTCEG score recompute
  3. 2026-10-22 19:27 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  4. 2026-10-22 16:34 UTCEPSS rescoreEPSS 43% · 98th percentile
  5. 2026-10-21 18:58 UTCEG score recompute
  6. 2026-10-21 18:58 UTCVendor advisory
  7. 2026-10-21 18:58 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  8. 2026-10-21 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  9. 2026-10-20 18:30 UTCEG score recompute
  10. 2026-10-20 18:30 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  11. 2026-10-20 16:33 UTCEPSS rescoreEPSS 43% · 98th percentile
  12. 2026-10-19 18:01 UTCEG score recompute
  13. 2026-10-19 18:01 UTCVendor advisory
  14. 2026-10-19 18:01 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  15. 2026-10-19 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
  16. 2026-10-18 17:32 UTCEG score recompute
  17. 2026-10-18 17:32 UTCVendor advisory
  18. 2026-10-18 17:31 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  19. 2026-10-18 16:31 UTCEPSS rescoreEPSS 43% · 98th percentile
  20. 2026-10-18 03:48 UTCEG score recompute
  21. 2026-10-17 17:03 UTCEG score recompute
  22. 2026-10-17 17:03 UTCVendor advisory
  23. 2026-10-17 17:02 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  24. 2026-10-17 16:34 UTCEPSS rescoreEPSS 43% · 98th percentile
  25. 2026-10-16 16:41 UTCEPSS rescoreEPSS 43% · 98th percentile
  26. 2026-10-16 16:35 UTCEG score recompute
  27. 2026-10-16 16:35 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  28. 2026-10-15 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  29. 2026-10-15 16:04 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  30. 2026-10-14 23:17 UTCEG score recompute
  31. 2026-10-14 23:17 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  32. 2026-10-14 16:32 UTCEPSS rescoreEPSS 43% · 98th percentile
  33. 2026-10-14 06:09 UTCEG score recompute
  34. 2026-10-14 06:09 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  35. 2026-10-13 16:34 UTCEPSS rescoreEPSS 43% · 98th percentile
  36. 2026-10-13 05:40 UTCEG score recompute
  37. 2026-10-13 05:40 UTCVendor advisory
  38. 2026-10-13 05:40 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  39. 2026-10-12 16:14 UTCEG score recompute
  40. 2026-10-12 05:12 UTCVendor advisory
  41. 2026-10-12 05:11 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  42. 2026-10-12 01:10 UTCVendor advisory
  43. 2026-10-12 01:10 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  44. 2026-10-11 21:12 UTCVendor advisory
  45. 2026-10-11 21:11 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  46. 2026-10-11 19:56 UTCEG score recompute
  47. 2026-10-11 17:15 UTCVendor advisory
  48. 2026-10-11 17:14 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  49. 2026-10-11 17:10 UTCEG score recompute
  50. 2026-10-11 14:38 UTCEG score recompute
  51. 2026-10-11 13:48 UTCEPSS rescoreEPSS 43% · 98th percentile
  52. 2026-10-11 13:17 UTCEG score recompute
  53. 2026-10-11 13:17 UTCVendor advisory
  54. 2026-10-11 13:17 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  55. 2026-10-11 09:19 UTCVendor advisory
  56. 2026-10-11 09:18 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  57. 2026-10-11 05:19 UTCVendor advisory
  58. 2026-10-11 05:19 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  59. 2026-10-11 01:23 UTCVendor advisory
  60. 2026-10-11 01:23 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  61. 2026-10-10 21:26 UTCEG score recompute
  62. 2026-10-10 21:26 UTCVendor advisory
  63. 2026-10-10 21:26 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  64. 2026-10-10 20:00 UTCEPSS rescoreEPSS 43% · 98th percentile
  65. 2026-10-10 17:28 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  66. 2026-10-10 13:30 UTCVendor advisory
  67. 2026-10-10 13:30 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  68. 2026-10-10 09:33 UTCVendor advisory
  69. 2026-10-10 09:33 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  70. 2026-10-10 05:37 UTCVendor advisory
  71. 2026-10-10 05:36 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  72. 2026-10-10 01:39 UTCVendor advisory
  73. 2026-10-10 01:39 UTCGHSA enrichmentGHSA-jmj9-qm9w-hrqj · GitHub CVSS 6.5
  74. 2026-10-09 21:42 UTCEG score recompute
  75. 2026-10-09 21:42 UTCVendor advisory

Frequently asked(6)

What is CVE-2026-32201?
CVE-2026-32201 is a critical-severity vulnerability; its CVE record was published on April 14, 2026. Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
When was CVE-2026-32201 made public?
CVE-2026-32201 was made public on April 14, 2026: that is the date its CVE record's CNA, Microsoft Corporation, gives for when the vulnerability was made public. The CVE record itself was published on April 14, 2026. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-32201 actively exploited?
Yes. CISA added CVE-2026-32201 to the Known Exploited Vulnerabilities catalog on April 14, 2026, affecting Microsoft SharePoint Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2026-32201?
CVE-2026-32201 has a CVSS v3 base score of 6.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0 (CRITICAL).
Which products are affected by CVE-2026-32201?
CVE-2026-32201 affects Microsoft SharePoint Server.
How do I remediate CVE-2026-32201?
A fix for CVE-2026-32201 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-32201 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-32201

Explore →

Is Your Infrastructure Affected by CVE-2026-32201?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.