CVE-2026-88779 KEV
7.5
HIGH · CVSS 3.1 · EPSS 0.5% (pctl 43)
Patch first
On CISA KEV — known exploited in the wild, due 2026-10-07.
Description
Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.53% — more likely to be exploited than 43% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | yes — remediate by 2026-10-07 |
| Public exploit | none known |
| Published | 2026-10-04 |
| Last modified | 2026-10-05 |
CISA KEV
| Name | Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability |
|---|---|
| Added | 2026-10-04 |
| Due | 2026-10-07 |
| Vendor / product | Citrix / NetScaler |
| Ransomware use | none reported |
Affected (2)
| Vendor | Product |
|---|---|
| citrix | netscaler application delivery controller |
| citrix | netscaler gateway |
References
- https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697174
- https://community.citrix.com/techzone-blogs/110_security-updates/understanding-and-addressing-cve-2026-88779-in-citrix-netscaler-adc-and-citrix-netscaler-gateway/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-88779
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