PT-2026-70730

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized...

PT-2026-70714

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized...

PT-2026-70722

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A numeric truncation error allows an unauthorized attacker to execute arbitrary code locally or remotely, potentially affecting the system. Recommendations At the moment, there...

PT-2026-70733

Name of the Vulnerable Software and Affected Versions Microsoft Office Excel affected versions not specified Description A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized...

CVE-2026-68794: Heap-based Buffer Overflow

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-68817: Stack-based Buffer Overflow

Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-68812: Heap-based Buffer Overflow

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

CVE-2026-68815: Heap-based Buffer Overflow

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally...

Security Updates for Microsoft Excel Products (August 2026)

The Microsoft Excel Products are missing a security update. They are, therefore, affected by multiple vulnerabilities: - Access of resource using incompatible type 'type confusion' in Microsoft Office Excel allows an unauthorized attacker to execute code over a network. CVE-2026-65807 -...

Microsoft Excel Code Execution

The vulnerability of Microsoft Excel spreadsheet editors within the Microsoft Office and Microsoft 365 Apps for Enterprise software packages is related to buffer overflow in dynamic memory. Exploiting this vulnerability can allow an attacker to execute arbitrary code...

CVE-2026-19360

CVE-2026-19360 affects wongcyrus ExcelLexBot (versions up to 0.0.3) via the ExcelLexBotS3TriggerFunction in the Lambda Function Handler. The root cause is improper privilege management, with a remote-compatible attack vector described in the entry. The vulnerability impacts products that are no l...

CLSA-2026-1779151612 TuxCare security update for com.github.pjfanning:excel-streaming-reader (2 CVEs)

TuxCare rebuilt com.github.pjfanning:excel-streaming-reader to address 2 CVEs. Fixed in 5.0.2-tuxcare.1...

CLSA-2026-1771978233 TuxCare security update for xlsx (2 CVEs)

TuxCare rebuilt xlsx to address 2 CVEs. Fixed in 0.18.5-tuxcare.1...

EUVD-2026-52536

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network...

CVE-2026-62870

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network...

PT-2026-91809

TuxCare rebuilt com.github.pjfanning:excel-streaming-reader to address 2 CVEs. Fixed in 5.0.2-tuxcare.1...

CVE-2026-62870 Microsoft Excel Remote Code Execution Vulnerability

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CVE-2026-62870 Microsoft Excel Remote Code Execution Vulnerability

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CVE-2026-62870

Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network...

CVE-2026-62870

CVE-2026-62870 describes a use-after-free in Microsoft Excel that could allow a remote attacker to execute code over a network. The issue has a high impact (C/H/I/A) with network-based, low-attack-complexity exploitation and requires user interaction. Microsoft has published a security update (KB...