Microsoft Office Online Server vulnerabilities
225 known vulnerabilities affecting microsoft/office_online_server.
Total CVEs
225
CISA KEV
1
actively exploited
Public exploits
4
Exploited in wild
3
Severity breakdown
CRITICAL1HIGH194MEDIUM28LOW2
Vulnerabilities
Page 10 of 12
CVE-2026-40360P3HIGHCVSS 7.8fixed in 16.0.10417.20128≥ 16.0.0.0, < 16.0.10417.201282026-05-12
CVE-2026-40360 [HIGH] CWE-125 CVE-2026-40360: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2025-26642P3HIGHCVSS 7.8≥ 16.0.0.0, < 16.0.10417.200032025-04-08
CVE-2025-26642 [HIGH] CWE-125 CVE-2025-26642: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-54902P3HIGHCVSS 7.8fixed in 16.0.10417.20047≥ 16.0.0.0, < 16.0.10417.200472025-09-09
CVE-2025-54902 [HIGH] CWE-125 CVE-2025-54902: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-54898P3HIGHCVSS 7.8fixed in 16.0.10417.20047≥ 16.0.0.0, < 16.0.10417.200472025-09-09
CVE-2025-54898 [HIGH] CWE-125 CVE-2025-54898: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-30381P3HIGHCVSS 7.8fixed in 16.0.10417.20010≥ 16.0.0.0, < 16.0.10417.200102025-05-13
CVE-2025-30381 [HIGH] CWE-125 CVE-2025-30381: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-30379P3HIGHCVSS 7.8fixed in 16.0.10417.20010≥ 16.0.0.0, < 16.0.10417.200102025-05-13
CVE-2025-30379 [HIGH] CWE-763 CVE-2025-30379: Release of invalid pointer or reference in Microsoft Office Excel allows an unauthorized attacker to
Release of invalid pointer or reference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2024-43465P3HIGHCVSS 7.8fixed in 16.0.10414.200002024-09-10
CVE-2024-43465 [HIGH] CWE-416 CVE-2024-43465: Microsoft Excel Elevation of Privilege Vulnerability
Microsoft Excel Elevation of Privilege Vulnerability
nvd
CVE-2026-97779P3MEDIUMCVSS 6.5fixed in 16.0.10417.20228≥ 16.0.0.0, < 16.0.10417.202282026-10-13
CVE-2026-97779 [MEDIUM] CWE-125 CVE-2026-97779: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-97760P3MEDIUMCVSS 6.5fixed in 16.0.10417.20228≥ 16.0.0.0, < 16.0.10417.202282026-10-13
CVE-2026-97760 [MEDIUM] CWE-125 CVE-2026-97760: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-70327P3MEDIUMCVSS 6.5≥ 16.0.0.0, < 16.0.10417.201752026-08-11
CVE-2026-70327 [MEDIUM] CWE-125 CVE-2026-70327: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-70328P3MEDIUMCVSS 6.5≥ 16.0.0.0, < 16.0.10417.201752026-08-11
CVE-2026-70328 [MEDIUM] CWE-125 CVE-2026-70328: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-55054P3MEDIUMCVSS 6.5fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55054 [MEDIUM] CWE-125 CVE-2026-55054: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-97740P3MEDIUMCVSS 6.5fixed in 16.0.10417.20228≥ 16.0.0.0, < 16.0.10417.202282026-10-13
CVE-2026-97740 [MEDIUM] CWE-497 CVE-2026-97740: Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel
Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
nvd
CVE-2026-44818P3HIGHCVSS 7.0≥ 16.0.0.0, < 16.0.10417.201372026-06-09
CVE-2026-44818 [HIGH] CWE-362 CVE-2026-44818: Concurrent execution using shared resource with improper synchronization ('race condition') in Micro
Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-55122P4HIGHCVSS 7.1fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55122 [HIGH] CWE-125 CVE-2026-55122: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-55898P4HIGHCVSS 7.1fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55898 [HIGH] CWE-125 CVE-2026-55898: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2025-60726P4HIGHCVSS 7.1fixed in 16.0.10417.20068≥ 16.0.0.0, < 16.0.10417.200682025-11-11
CVE-2025-60726 [HIGH] CWE-125 CVE-2025-60726: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2025-62202P4HIGHCVSS 7.1fixed in 16.0.10417.20068≥ 16.0.0.0, < 16.0.10417.200682025-11-11
CVE-2025-62202 [HIGH] CWE-125 CVE-2025-62202: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-32188P4HIGHCVSS 7.1≥ 16.0.0.0, < 16.0.10417.201132026-04-14
CVE-2026-32188 [HIGH] CWE-125 CVE-2026-32188: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2025-59235P4HIGHCVSS 7.1fixed in 16.0.10417.20059≥ 16.0.0.0, < 16.0.10417.200592025-10-14
CVE-2025-59235 [HIGH] CWE-125 CVE-2025-59235: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd