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CVE-2026-45458

⚠️ high
🔍 Scan for this CVE
Summary

Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVSS Score
8.4
High
EPSS Score
0.4
Exploit Probability
Published Date
2026-06-09
First Seen: 2026-06-10
📊 Relative Risk Intelligence

This CVE is High Risk - more severe than 80.3% of all 329,456 vulnerabilities in our database.

#64,947
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jun 5, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
SSVC data provided by CISA
Last Modified 2026-06-19
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE IDs (Weakness Types)
CWE-416

📦 Affected Products 7

Vendor Product Status Affected Versions
microsoft word Affected
v2016
microsoft sharepoint_server Affected
< 16.0.19725.20384
microsoft sharepoint_server Affected
v2016
microsoft sharepoint_server Affected
v2019
microsoft 365_apps Affected
v-
microsoft office_2019 Affected
v-
microsoft office_2024 Affected
v-

🔗 References 1

https://msrc.microsoft.com/update-guide/vulnerabilit...
Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-44803 ⚠️ high 7.8 0.4 Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally. 2026-06-09
CVE-2026-44812 ⚠️ high 7.8 0.4 Integer overflow or wraparound in Windows Win32K - GRFX allows an unauthorized attacker to execute code locally. 2026-06-09
CVE-2026-45471 ⚠️ high 7.8 0.5 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally. 2026-06-09
CVE-2026-45649 ⚠️ high 7.1 0.4 Improper access control in Office for Android allows an unauthorized attacker to perform spoofing locally. 2026-06-09
CVE-2026-33113 🔶 medium 5.4 0.4 Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office SharePoint allo... 2026-06-09
CVE-2026-44819 ⚠️ high 7.8 0.5 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. 2026-06-09
These CVEs affect the same products