CVE-2026-108438
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
Use after free in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
Risk Assessment
An attacker may access application memory, leading to the leakage of potentially sensitive information. This requires delivering a crafted document to the victim.
Recommendation
Apply the latest Microsoft Office security updates for Word. Do not open documents from untrusted sources.
Other vulnerabilities in Microsoft Office Word
See all- CVE-2026-20948High
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
- CVE-2026-20944High
An out-of-bounds read vulnerability in Microsoft Office Word allows an unauthorized attacker to execute code locally.
- CVE-2026-70300Critical
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
- CVE-2026-40364High
In Microsoft Office Word, a vulnerability related to access of resource using incompatible type ('type confusion') allows an unauthorized attacker to execute code locally.
- CVE-2026-108451High
A numeric truncation error in Microsoft Office Word allows an unauthenticated attacker to execute code over a network. The flaw stems from improper handling of numeric values.
- CVE-2026-108450High
A heap-based buffer overflow in Microsoft Office Word allows an unauthenticated attacker to execute code over a network. The vulnerability occurs when processing specially crafted data.
- CVE-2026-108449High
A heap-based buffer overflow in Microsoft Office Word allows an unauthenticated attacker to execute code over a network. The vulnerability occurs when processing specially crafted data.
- CVE-2026-108447High
A heap-based buffer overflow in Microsoft Office Word allows an unauthenticated attacker to execute code over a network. The vulnerability occurs when processing specially crafted data.
- CVE-2026-108445High
A stack-based buffer overflow in Microsoft Office Word allows an unauthenticated attacker to execute code over a network. The vulnerability occurs when processing specially crafted data.
- CVE-2026-108443High
An off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network. The flaw stems from an incorrect buffer size calculation by one byte.
Original NVD description (English source)
Use after free in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS