Cisco ASA ↗
Summary iPlain-English security verdict for Cisco ASA, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
Cisco ASA currently scores 0/100 — critical, with active exploitation. 11 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2020-3452. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
Disclosure trend iNew CVEs published for Cisco ASA each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
3 of its known vulnerabilities are linked to ransomware campaigns (CISA KEV).
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2020-3452 HIGH exploited Improper input validation EPSS 100% → fixed in 9.14.1.10 CVE-2018-0296 HIGH exploited Improper input validation EPSS 100% → fixed in 9.9.2.1 CVE-2020-3580 MEDIUM exploited ransomware Cross-site scripting (XSS) EPSS 86% → fixed in 9.15.1.15 CVE-2025-20362 MEDIUM exploited Missing authorization EPSS 86% → fixed in 9.23.1.19 CVE-2024-20353 HIGH exploited CWE-835 EPSS 71% → see advisory CVE-2020-3259 HIGH exploited ransomware Information disclosure EPSS 69% → fixed in 9.13.1.10 CVE-2025-20333 CRITICAL exploited Buffer overflow EPSS 40% → fixed in 9.22.1.3 CVE-2023-20269 MEDIUM exploited ransomware CWE-288 EPSS 22% → see advisory CVE-2024-20359 MEDIUM exploited Code injection EPSS 19% → see advisory CVE-2024-20481 MEDIUM exploited CWE-772 EPSS 16% → see advisory CVE-2026-20349 HIGH exploited CWE-244 EPSS 1% → see advisory CVE-2020-3187 CRITICAL Path traversal EPSS 97% → fixed in 9.13.1.7Get alerted about Cisco ASA
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Frequently asked
Is Cisco ASA safe and patched?
Cisco ASA currently scores 0/100 — critical, with active exploitation. 11 of its known vulnerabilities are being actively exploited in the wild (CISA KEV), including CVE-2020-3452. Upgrade immediately and review your exposure to the actively-exploited CVEs below.
What should I do about Cisco ASA now?
Review the patch-priority list, apply the available fixes (or move to the latest release), and confirm against Cisco's official advisory. Some issues are under active exploitation, so treat this as urgent.
lifecycle unknown — needs latest supported version
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Cisco's official advisory before you patch or upgrade — Cisco ASA official site ↗