Microsoft Office Ltsc 2021 vulnerabilities
781 known vulnerabilities affecting microsoft/microsoft_office_ltsc_2021.
Total CVEs
781
CISA KEV
9
actively exploited
Public exploits
13
Exploited in wild
12
Severity breakdown
CRITICAL13HIGH581MEDIUM179LOW8
Vulnerabilities
Page 36 of 40
CVE-2026-70314P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70314 [MEDIUM] CWE-20 CVE-2026-70314: Improper input validation in Microsoft Office allows an unauthorized attacker to disclose informatio
Improper input validation in Microsoft Office allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-68802P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68802 [MEDIUM] CWE-125 CVE-2026-68802: 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-2026-63528P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-63528 [MEDIUM] CWE-125 CVE-2026-63528: Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-68813P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68813 [MEDIUM] CWE-125 CVE-2026-68813: 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-2026-70318P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70318 [MEDIUM] CWE-20 CVE-2026-70318: Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose info
Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-68808P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68808 [MEDIUM] CWE-125 CVE-2026-68808: 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-2026-68799P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68799 [MEDIUM] CWE-908 CVE-2026-68799: Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose
Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-55046P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55046 [MEDIUM] CWE-125 CVE-2026-55046: 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-2026-55057P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55057 [MEDIUM] CWE-190 CVE-2026-55057: Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose infor
Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-50408P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-50408 [MEDIUM] CWE-125 CVE-2026-50408: 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-2026-55042P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55042 [MEDIUM] CWE-908 CVE-2026-55042: Use of uninitialized resource in Microsoft Office allows an unauthorized attacker to disclose inform
Use of uninitialized resource in Microsoft Office allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-97014P4MEDIUMCVSS 5.5≥ 16.0.1, < 16.0.14334.209742026-10-13
CVE-2026-97014 [MEDIUM] CWE-125 CVE-2026-97014: 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-2026-35440P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-05-12
CVE-2026-35440 [MEDIUM] CWE-552 CVE-2026-35440: Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized
Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-70315P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70315 [MEDIUM] CWE-125 CVE-2026-70315: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information local
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-63521P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-63521 [MEDIUM] CWE-125 CVE-2026-63521: Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-70310P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70310 [MEDIUM] CWE-125 CVE-2026-70310: Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information
Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-66809P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-66809 [MEDIUM] CWE-125 CVE-2026-66809: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information local
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-70319P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-70319 [MEDIUM] CWE-20 CVE-2026-70319: Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose infor
Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd
CVE-2026-54988P4MEDIUMCVSS 6.1≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-54988 [MEDIUM] CWE-125 CVE-2026-54988: 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-2026-55142P4MEDIUMCVSS 5.5≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55142 [MEDIUM] CWE-197 CVE-2026-55142: Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose inform
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
nvd