Critical severity · published Oct 28, 2021
CVE-2021-3823
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the UpdateServer component of Bitdefender GravityZone allows an attacker to execute…
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the UpdateServer component of Bitdefender GravityZone allows an attacker to execute arbitrary code on vulnerable instances. This issue affects: Bitdefender GravityZone versions prior to 3.3.8.249.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 64% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Gravityzone · Bitdefender
before 3.3.8.249 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3823
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3823
Vendor Advisory
https://www.bitdefender.com/support/security-advisories/path-traversal-vulnerability-in-bitdefender-gravitzone-update-server-in-relay-mode-va-10039/
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