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CVE-2026-35440

🔶 medium
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Summary

Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

CVSS Score
5.5
Medium
EPSS Score
0.0
Exploit Probability
Published Date
2026-05-12
First Seen: 2026-05-20
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 32.6% of all 327,350 vulnerabilities in our database.

#220,771
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 13, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-05-19
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE IDs (Weakness Types)
CWE-552

📦 Affected Products 5

Vendor Product Status Affected Versions
microsoft office Affected
v2019
microsoft word Affected
v2016
microsoft 365_apps Affected
v-
microsoft office_long_term_servicing_channel Affected
v2021
microsoft office_long_term_servicing_channel Affected
v2024

🔗 References 1

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

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-45458 ⚠️ high 8.4 0.1 Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to exe... 2026-06-09
CVE-2026-44817 ⚠️ high 7.8 0.2 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally... 2026-06-09
CVE-2026-44818 ⚠️ high 7.0 0.0 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally... 2026-06-09
CVE-2026-44819 ⚠️ high 7.8 0.1 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. 2026-06-09
CVE-2026-44820 ⚠️ high 7.8 0.1 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally... 2026-06-09
CVE-2026-44821 🔶 medium 5.5 0.1 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally. 2026-06-09
These CVEs affect the same products