Microsoft Office Online Server vulnerabilities
153 known vulnerabilities affecting microsoft/office_online_server.
Total CVEs
153
CISA KEV
1
actively exploited
Public exploits
4
Exploited in wild
3
Severity breakdown
CRITICAL1HIGH133MEDIUM17LOW2
Vulnerabilities
Page 5 of 8
CVE-2025-30376P3HIGHCVSS 7.8fixed in 16.0.10417.20010≥ 16.0.0.0, < 16.0.10417.200102025-05-13
CVE-2025-30376 [HIGH] CWE-122 CVE-2025-30376: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-59231P3HIGHCVSS 7.8fixed in 16.0.10417.20059≥ 16.0.0.0, < 16.0.10417.200592025-10-14
CVE-2025-59231 [HIGH] CWE-843 CVE-2025-59231: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-59233P3HIGHCVSS 7.8fixed in 16.0.10417.20059≥ 16.0.0.0, < 16.0.10417.200592025-10-14
CVE-2025-59233 [HIGH] CWE-843 CVE-2025-59233: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-49711P3HIGHCVSS 7.8fixed in 16.0.10417.20027≥ 16.0.0.0, < 16.0.10417.200272025-07-08
CVE-2025-49711 [HIGH] CWE-416 CVE-2025-49711: 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-2026-20957P3HIGHCVSS 7.8fixed in 16.0.10417.20083≥ 16.0.0.0, < 16.0.10417.200832026-01-13
CVE-2026-20957 [HIGH] CWE-122 CVE-2026-20957: Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-55024P3HIGHCVSS 7.8fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55024 [HIGH] CWE-843 CVE-2026-55024: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-44817P3HIGHCVSS 7.8≥ 16.0.0.0, < 16.0.10417.201372026-06-09
CVE-2026-44817 [HIGH] CWE-843 CVE-2026-44817: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-45469P3HIGHCVSS 7.8≥ 16.0.0.0, < 16.0.10417.201372026-06-09
CVE-2026-45469 [HIGH] CWE-122 CVE-2026-45469: Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to
Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2026-55036P3HIGHCVSS 7.8fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55036 [HIGH] CWE-126 CVE-2026-55036: 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-2026-55025P3HIGHCVSS 7.8fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
CVE-2026-55025 [HIGH] CWE-843 CVE-2026-55025: Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an un
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2024-30042P3HIGHCVSS 7.8fixed in 16.0.10410.20003v2016+1 more2024-05-14
CVE-2024-30042 [HIGH] CWE-502 CVE-2024-30042: Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
nvd
CVE-2025-24075P3HIGHCVSS 7.8≥ 16.0.0.0, < 16.0.10416.200732025-03-11
CVE-2025-24075 [HIGH] CWE-121 CVE-2025-24075: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
nvd
CVE-2025-62556P3HIGHCVSS 7.8fixed in 16.0.10417.20075≥ 16.0.0.0, < 16.0.10417.200752025-12-09
CVE-2025-62556 [HIGH] CWE-822 CVE-2025-62556: 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-2025-62564P3HIGHCVSS 7.8fixed in 16.0.10417.20075≥ 16.0.0.0, < 16.0.10417.200752025-12-09
CVE-2025-62564 [HIGH] CWE-125 CVE-2025-62564: 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-2025-62560P3HIGHCVSS 7.8fixed in 16.0.10417.20075≥ 16.0.0.0, < 16.0.10417.200752025-12-09
CVE-2025-62560 [HIGH] CWE-126 CVE-2025-62560: 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-2025-62561P3HIGHCVSS 7.8fixed in 16.0.10417.20075≥ 16.0.0.0, < 16.0.10417.200752025-12-09
CVE-2025-62561 [HIGH] CWE-822 CVE-2025-62561: 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-2026-26112P3HIGHCVSS 7.8fixed in 16.0.10417.20102≥ 16.0.0.0, < 16.0.10417.201022026-03-10
CVE-2026-26112 [HIGH] CWE-822 CVE-2026-26112: 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 7.8fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
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-2026-44823P3HIGHCVSS 7.8≥ 16.0.0.0, < 16.0.10417.201372026-06-09
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-2026-55058P3HIGHCVSS 7.8fixed in 16.0.10417.20175≥ 16.0.0.0, < 16.0.10417.201752026-07-14
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