---
title: "Security digests, October 2026"
url: https://erroneo.us/security/archive/2026-10/
description: "Every daily security digest from October 2026: 24 editorial briefs, 24 known exploited (CISA KEV) additions and 82 critical advisories, day by day, with…"
type: security-archive-month
section: "Security Digest"
date_modified: 2026-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digests, October 2026

- [October 21, 2026](https://erroneo.us/security/2026-10-21/index.md): 3 editorial briefs and 3 critical advisories
- [October 20, 2026](https://erroneo.us/security/2026-10-20/index.md): 2 editorial briefs, 6 known exploited (CISA KEV) additions and 3 critical advisories
- [October 19, 2026](https://erroneo.us/security/2026-10-19/index.md): 2 critical advisories
- [October 16, 2026](https://erroneo.us/security/2026-10-16/index.md): 2 editorial briefs, 2 known exploited (CISA KEV) additions and 2 critical advisories
- [October 15, 2026](https://erroneo.us/security/2026-10-15/index.md): 2 editorial briefs, 1 known exploited (CISA KEV) addition and 6 critical advisories
- [October 14, 2026](https://erroneo.us/security/2026-10-14/index.md): 3 editorial briefs and 4 known exploited (CISA KEV) additions
- [October 13, 2026](https://erroneo.us/security/2026-10-13/index.md): 5 editorial briefs, 2 known exploited (CISA KEV) additions and 3 critical advisories
- [October 9, 2026](https://erroneo.us/security/2026-10-09/index.md): 4 critical advisories
- [October 8, 2026](https://erroneo.us/security/2026-10-08/index.md): 2 editorial briefs, 5 known exploited (CISA KEV) additions and 7 critical advisories
- [October 7, 2026](https://erroneo.us/security/2026-10-07/index.md): 2 editorial briefs and 12 critical advisories
- [October 6, 2026](https://erroneo.us/security/2026-10-06/index.md): 6 critical advisories
- [October 5, 2026](https://erroneo.us/security/2026-10-05/index.md): 1 editorial brief and 17 critical advisories
- [October 4, 2026](https://erroneo.us/security/2026-10-04/index.md): 1 editorial brief and 1 known exploited (CISA KEV) addition
- [October 2, 2026](https://erroneo.us/security/2026-10-02/index.md): 2 known exploited (CISA KEV) additions and 5 critical advisories
- [October 1, 2026](https://erroneo.us/security/2026-10-01/index.md): 1 editorial brief, 1 known exploited (CISA KEV) addition and 12 critical advisories

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Source page: https://erroneo.us/security/archive/2026-10/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt