Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-1240 |
CWE-ID | CWE-119 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Microsoft 365 Apps for Enterprise Client/Desktop applications / Office applications |
Vendor | Microsoft |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU29905
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-1240
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Microsoft Excel software when the software fails to properly handle objects in memory. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsMicrosoft 365 Apps for Enterprise: 32-bit Systems - 64-bit Systems
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1240
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to trick the victim to visit a specially crafted website or open a file.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.