8.2

CVE-2023-4967: citrix netscaler_application_delivery_controller

CVSS: 8.2v3.1HighModified
Published 27-10-2023Last modified 27-02-2025

Vulnerability summary

CVE-2023-4967 is a high (CVSS 8.2) vulnerability in citrix netscaler_application_delivery_controller. EPSS estimates a 1.09% chance of exploitation in the next 30 days, higher than 64.8% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (CVE.org)
EPSS score
1.09%
0%100%
Low · +0.20 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-10-2023
    PublishedVulnerability first disclosed.
  2. 27-02-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.09%

Chance of exploitation in the next 30 days

Percentile

65%

Versus all other CVEs

30-day change

+0.20 pp

From 0.89% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.09%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Citrix2 products
Cloud software group2 products
  • netscaler adc≥ 14.1, < 8.50 | ≥ 13.1, < 49.15 | ≥ 13.0, < 92.19 | ≥ 13.1-FIPS, < 37.164 | ≥ 12.1-FIPS, < 55.300 | ≥ 12.1-NDcPP, < 55.300
  • netscaler gateway≥ 14.1, < 8.50 | ≥ 13.1, < 49.15 | ≥ 13.0, < 92.19

2 vendors · 4 products

References

1 links