CVEs / CVE-2023-3519
CVE-2023-3519: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
- Known exploited in the CISA KEV catalog since 19 Jul 2023
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 99.7% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
Citrix NetScaler ADC and NetScaler Gateway contains a code injection vulnerability that allows for unauthenticated remote code execution.
Description
Unauthenticated remote code execution
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Citrix NetScaler ADC | from 13.1, before 49.13 | 49.13 |
| Citrix NetScaler ADC | from 13.0, before 91.13 | 91.13 |
| Citrix NetScaler ADC | from 13.1-FIPS, before 37.159 | 37.159 |
| Citrix NetScaler ADC | from 12.1-FIPS, before 55.297 | 55.297 |
| Citrix NetScaler ADC | from 12.1-NDcPP, before 55.297 | 55.297 |
| Citrix NetScaler Gateway | from 13.1, before 49.13 | 49.13 |
| Citrix NetScaler Gateway | from 13.0, before 91.13 | 91.13 |
Exploitation
| In CISA KEV since | 19 Jul 2023 |
|---|---|
| Due date for US federal agencies | 9 Aug 2023 |
| Used in ransomware campaigns | Known |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-94 |
References
- CVE-2023-3519 on NVD
- CVE-2023-3519 in the CISA KEV catalog
- https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 (cited by CISA)
- http://packetstormsecurity.com/files/173997/Citrix-ADC-NetScaler-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
- https://support.citrix.com/article/CTX561482/citrix-adc-and-citrix-gateway-security-bulletin-for-cve20233519-cve20233466-cve20233467 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-3519 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.