CVE-2026-44822
Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
CSIRTS triage
- What
- Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.
- Who is affected
- Users of Microsoft Excel.
- Urgency
- Remediation is urgent due to the high severity and risk of information disclosure.
- Action
- Apply the latest security updates for Microsoft Excel.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.52% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2026-44822: Microsoft Excel Information Disclosure Vulnerabilitymsrc · 2026-06-09
External references
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