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 23 of 40
CVE-2026-81956P3HIGHCVSS 7.8≥ 16.0.1, < 16.0.14334.209062026-09-08
CVE-2026-81956 [HIGH] CWE-125 CVE-2026-81956: 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-2026-68793P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68793 [HIGH] CWE-125 CVE-2026-68793: 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-2026-63515P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-63515 [HIGH] CWE-125 CVE-2026-63515: 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-2026-68804P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68804 [HIGH] CWE-122 CVE-2026-68804: Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code l
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-63525P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-63525 [HIGH] CWE-197 CVE-2026-63525: Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code lo
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-68814P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68814 [HIGH] CWE-125 CVE-2026-68814: 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-2026-68810P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-08-11
CVE-2026-68810 [HIGH] CWE-822 CVE-2026-68810: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute c
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-55031P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55031 [HIGH] CWE-125 CVE-2026-55031: 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-2026-55058P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55058 [HIGH] CWE-125 CVE-2026-55058: 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-2026-55044P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55044 [HIGH] CWE-125 CVE-2026-55044: 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-2026-55136P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-07-14
CVE-2026-55136 [HIGH] CWE-822 CVE-2026-55136: Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute c
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-30393P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-05-13
CVE-2025-30393 [HIGH] CWE-416 CVE-2025-30393: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-45471P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-06-09
CVE-2026-45471 [HIGH] CWE-822 CVE-2026-45471: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-32704P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-05-13
CVE-2025-32704 [HIGH] CWE-126 CVE-2025-32704: Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Buffer over-read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-59225P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-10-14
CVE-2025-59225 [HIGH] CWE-416 CVE-2025-59225: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-59224P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-10-14
CVE-2025-59224 [HIGH] CWE-416 CVE-2025-59224: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-59223P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2025-10-14
CVE-2025-59223 [HIGH] CWE-416 CVE-2025-59223: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-44823P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2026-06-09
CVE-2026-44823 [HIGH] CWE-197 CVE-2026-44823: Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code l
Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2022-30174P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-06-15
CVE-2022-30174 [HIGH] CVE-2022-30174: Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
nvd
CVE-2022-29109P3HIGHCVSS 7.8≥ 16.0.1, < https://aka.ms/OfficeSecurityReleases2022-05-10
CVE-2022-29109 [HIGH] CVE-2022-29109: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
nvd