High severity · published May 3, 2021
CVE-2021-25631
In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't…
8.8
CVSS
5%
EPSS
No
On KEV
Description
In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.0% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libreoffice · Libreoffice
7.0.0 before 7.0.5; 7.1.0 before 7.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25631
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-25631
Exploit
https://positive.security/blog/url-open-rce#open-libreoffice
Vendor Advisory
https://www.libreoffice.org/about-us/security/advisories/cve-2021-25631/
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