CVE-2023-6548

medium

Description

Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

From the Tenable Blog

CVE-2023-6548, CVE-2023-6549: Zero-Day Vulnerabilities Exploited in Citrix NetScaler ADC and NetScaler Gateway

Published: 2024-01-16

Two zero-day vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway have been exploited in the wild. Urgent patching is required to address these flaws.

References

https://www.bleepingcomputer.com/news/security/citrix-warns-of-new-netscaler-zero-days-exploited-in-attacks/

https://www.tenable.com/blog/verizon-2025-dbir-tenable-research-collaboration

https://www.tenable.com/blog/cve-2023-6548-cve-2023-6549-zero-day-vulnerabilities-netscaler-adc-gateway-exploited

https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549

Details

Source: Mitre, NVD

Published: 2024-01-17

Updated: 2025-01-27

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:L/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 4.8

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Severity: Medium

EPSS

EPSS: 0.2135

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest

Detections

Analytics