Vulnerability in Microsoft 365 Apps
CVE-2020-1240
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.126 (96.1th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.138 · newest: 0.126 · change: -0.011
Affected products
- Microsoft 365 Apps
- Microsoft 365 Apps For Enterprise 32-Bit Systems — versions unspecified
- Microsoft 365 Apps For Enterprise 64-Bit Systems — versions unspecified
Public proof-of-concept exploits
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1240 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-1240?
- CVE-2020-1240 is a high-severity vulnerability in Microsoft 365 Apps. CVSS score: 8.8/10. Published 2020-07-14.
- How severe is CVE-2020-1240?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-1240 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.