CVE-2026-111334: Memory overflow in Endpoint Analysis (EPA/EPAS) can lead to unpredictable or erroneous behavior or a Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.3%
EPSS score, percentile 18.6 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.3 Critical
CVSS v4.0 base score, given by the CNA
- What should I do?
CISA has set no required action, because the vulnerability is not in KEV.
No patch or vendor advisory is listed in the CVE record. Check Citrix's advisories.
- Which versions are affected?
Affected
- before 14.1-73.57
- before 13.1-64.39
- before 14.1-73.58 FIPS
- before 13.1-37.293 FIPs and NDcPP
- before 14.1-73.57
- before 13.1-64.39
Source: CISA KEV 2026.11.13, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
Description
Memory overflow in Endpoint Analysis (EPA/EPAS) can lead to unpredictable or erroneous behavior or a Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway
Memory overflow in Endpoint Analysis (EPA/EPAS) can lead to unpredictable or erroneous behavior or a Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.
Source: CVE List, as of . About the data.
What to do
Advisories and patches
No patch, vendor advisory or mitigation is listed in the CVE record. Check Citrix's own security advisories for a fix, and compare your version with the affected versions below.
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
Versions by product, as listed in the CVE record (2 products)
| Status | Versions |
|---|---|
| Affected | before 14.1-73.57 |
| Affected | before 13.1-64.39 |
| Affected | before 14.1-73.58 FIPS |
| Affected | before 13.1-37.293 FIPs and NDcPP |
Versions not listed are: unaffected.
| Status | Versions |
|---|---|
| Affected | before 14.1-73.57 |
| Affected | before 13.1-64.39 |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
Timeline
| Date | Event |
|---|---|
| CVE record published |
References
1
Known exploited Citrix vulnerabilities
- CVE-2026-88779: Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
- CVE-2026-88771: Citrix NetScaler Improper Input Validation Vulnerability
- CVE-2026-88772: Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
- CVE-2026-19490: Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability
- CVE-2026-8452: Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability