High severity · published Oct 27, 2023
CVE-2023-4967
Denial of Service in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA Virtual Server
7.5
CVSS
1.1%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
NetScaler ADC · Citrix
13.0 before 13.0-92.19; 13.1 before 13.1-49.15; 14.1 before 14.1-8.50; 12.1 through 12.1-55.300; 12.1 through 12.1-55.300; 13.1 through 13.1-37.164 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-4967
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-4967
Vendor Advisory
https://support.citrix.com/article/CTX579459/
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