Medium severity · published Sep 7, 2021
CVE-2021-33599
A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner)
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability affecting F-Secure Antivirus engine was discovered whereby scanning WIM archive file can lead to denial-of-service (infinite loop and freezes AV engine scanner). The vulnerability can be exploit remotely by an attacker. A successful attack will result in Denial-of-Service of the Anti-Virus engine.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AT
Atlant · F-secure
All versions, or not specified · source: NVD
CP
Cloud Protection For Salesforce · F-secure
All versions, or not specified · source: NVD
EE
Elements Endpoint Protection · F-secure
All versions, or not specified · source: NVD
LS
Linux Security · F-secure
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33599
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33599
Vendor Advisory
https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
Vendor Advisory
https://www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-33599
More from Atlant
7.8
CVE-2023-43766
Certain WithSecure products allow Local privilege escalation via the lhz archive unpack handler
7.5
CVE-2023-49322
Certain WithSecure products allow a Denial of Service because there is an unpack handler crash that can lead to a scanning engine crash
7.5
CVE-2023-43767
Certain WithSecure products allow Denial of Service via the aepack archive unpack handler
7.5
CVE-2023-43765
Certain WithSecure products allow Denial of Service in the aeelf component
7.5
CVE-2023-43761
Certain WithSecure products allow Denial of Service (infinite loop)