CVE-2023-23391
CVE-2023-23391 is a medium-severity vulnerability in Microsoft 365 Copilot with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-23.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-23
- Affected product: Microsoft 365 Copilot
- Published:
- Last modified:
Description
Office for Android Spoofing Vulnerability
Frequently asked questions
- What is CVE-2023-23391?
- Office for Android Spoofing Vulnerability
- How severe is CVE-2023-23391?
- CVE-2023-23391 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2023-23391 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-23391?
- CVE-2023-23391 affects Microsoft 365 Copilot. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-23391?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-23391 published?
- CVE-2023-23391 was published on 2023-03-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:365_copilot:16.0.16026.20172:*:*:*:*:android:*:*
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