Risk | Low |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-34451 |
CWE-ID | CWE-451 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Office Online Server Server applications / Other server solutions |
Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
EUVDB-ID: #VU54773
Risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-34451
CWE-ID:
CWE-451 - User Interface (UI) Misrepresentation of Critical Information (Clickjacking, spoofing)
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in the Microsoft Office Online Server. A remote attacker can spoof page content.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOffice Online Server : 2016
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34451
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.