CVE-2023-20269CISA KEVEPSS p97.3%

CVE-2023-20269Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerability

Cisco / Adaptive Security Appliance and Firepower Threat Defense

Description

Cisco Adaptive Security Appliance and Firepower Threat Defense contain an unauthorized access vulnerability that could allow an unauthenticated, remote attacker to conduct a brute force attack in an attempt to identify valid username and password combinations or establish a clientless SSL VPN session with an unauthorized user.

Scoring

EPSS21.58% probability of exploitation · percentile 97.3% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2023-09-13

(incoming)1

TypeTargetConfidenceTier
KEVEntryCisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access Vulnerabilitykev-cve-2023-202690%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability
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CVE-2025-20133
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CVE-2025-20265
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CVE-2022-40684
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.