CVE-2021-43255
MEDIUMCVSS 5.5/10EPSS 1.96%
Last modified
CVE-2021-43255 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Microsoft Office Trust Center Spoofing Vulnerability. EPSS estimates a 1.96% chance of exploitation in the next 30 days.
Description
Microsoft Office Trust Center Spoofing Vulnerability
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Microsoft | 365 Apps | All versions | — |
| Microsoft | Office | 2013 | Sp1 |
| Microsoft | Office | 2013_rt | Sp1 |
| Microsoft | Office | 2016 | — |
| Microsoft | Office | 2019 | — |
| Microsoft | Office Long Term Servicing Channel | 2021 | — |
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43255Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43255Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-43255?
Microsoft Office Trust Center Spoofing Vulnerability
How severe is CVE-2021-43255?
CVE-2021-43255 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 1.96% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43255?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-43255?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST