PatchTheCVEoffice 2021 vulnerabilities and fixes
Recent CVEs affecting office 2021, with upgrade or downgrade steps. 2 tracked.
Also searched as: office2021.
office 2021 has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-08-11. Highest priority: CVE-2026-68813 (score 35/100).
- CVE-2026-68813 MEDIUM 5.5 MITIGATE MITIGATE Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
- CVE-2026-70310 MEDIUM 5.5 MITIGATE MITIGATE Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
FAQ
How do I fix office 2021 vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is office 2021 being exploited right now?
None of the tracked office 2021 CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which office 2021 CVE should I patch first?
CVE-2026-68813 currently ranks highest (35/100): Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally..