5.9

CVE-2025-12101: netscaler adc Cross-site Scripting

CVSS: 5.9v4.0MediumDeferred
Published 11-11-2025Last modified 12-11-2025
Open JSON

Vulnerability summary

CVE-2025-12101 is a medium (CVSS 5.9) Cross-site Scripting vulnerability in netscaler adc. EPSS estimates a 26.25% chance of exploitation in the next 30 days, higher than 97.9% of scored vulnerabilities.

Overall risk
29/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
26.25%
0%100%
High · +0.85 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-11-2025
    PublishedVulnerability first disclosed.
  2. 12-11-2025
    Last modifiedVulnerability information updated.

Description

Cross-Site Scripting (XSS) in NetScaler ADC and NetScaler Gateway when the appliance is 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

26.25%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

+0.85 pp

From 25.40% on 19-09-2026

19-09-202619-10-2026
EPSS score
26.25%

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

Netscaler2 products
  • adc≥ 14.1, < 56.73 | ≥ 13.1, < 60.32 | ≥ 13.1-FIPS and NDcPP, < 37.250 | ≥ 12.1-FIPS and NDcPP, < 55.333
  • gateway≥ 14.1, < 56.73 | ≥ 13.1, < 60.32 | ≥ 13.1-FIPS and NDcPP, < 37.250 | ≥ 12.1-FIPS and NDcPP, < 55.333

1 vendor · 2 products

References

1 links