VulnerabilityAnalyzed
CVE-2023-3519
Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
KEVCRITICAL 9.8EPSS 99.7%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 9 August 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Unauthenticated remote code execution
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.75% probability · 100th percentile
- CISA KEV
- Listed 19 July 2023 · due 9 August 2023 · used in ransomware campaigns
- Weakness
- CWE-94
- Affected
- citrix/netscaler application delivery controller · citrix/netscaler gateway
- Source
- secure@citrix.com
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467; https://nvd.nist.gov/vuln/detail/CVE-2023-3519
References
- http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467Vendor Advisory
- http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3519US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.