# CVE-2026-107415: Memory overflow in Email OTP authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Memory overflow in Email OTP authentication can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Citrix / NetScaler ADC: ≥ 0; < 14.1-73.57 (affected, patch); ≥ 0; < 13.1-64.39 (affected, patch); ≥ 0; < 14.1-73.58 FIPS (affected, patch); ≥ 0; < 13.1-37.293 FIPs and NDcPP (affected, patch). Source: CNA: NetScaler
- Citrix / NetScaler Gateway: ≥ 0; < 14.1-73.57 (affected, patch); ≥ 0; < 13.1-64.39 (affected, patch). Source: CNA: NetScaler

## Severity and prioritization

- CVSS 4.0: 9.3 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L; source: CNA: NetScaler

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305 (CNA: NetScaler)

## Provenance

- CNA: NetScaler: https://www.cve.org/CVERecord?id=CVE-2026-107415; retrieved 2026-11-13; source updated 2026-11-13

Revision: 9e938f9cad5b5cfb3286dd041e927d1a07f262c885fb660175ff4da81ade9b49

Canonical: https://y2.dev/cve/CVE-2026-107415

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