---
title: "Security digest: October 18, 2023"
url: https://erroneo.us/security/2023-10-18/
description: "October 18, 2023 vulnerability digest: 1 CISA KEV addition (Citrix). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2023-10-18
date_modified: 2023-10-18
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: October 18, 2023

1 known exploited (cisa kev) addition.

## Take stock

- Do you run any of these? Citrix NetScaler ADC and NetScaler Gateway. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2023-11-08.
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

- [CVE-2023-4966](https://erroneo.us/security/cve/CVE-2023-4966/index.md) Citrix NetScaler ADC and NetScaler Gateway: Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability (CISA due 2023-11-08)

## Critical advisories

None.

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Source page: https://erroneo.us/security/2023-10-18/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt