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Threats / Cisco / CVE-2024-20359
CVE-2024-20359 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

Cisco Adaptive Security Appliance (ASA) and Firepower Threat vulnerability

Cisco ASA and FTD contain a privilege escalation vulnerability allowing local attackers to escalate from Administrator to root access.

Verdict

Today item — known-exploited.

A local privilege escalation flaw in Cisco ASA and FTD enables authenticated administrators to gain root-level control. The vulnerability is actively exploited in the wild, though exploitation requires prior local access.

CISA KEV Yes · 2024-04-243EPSS 0.16995 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Reported exploitation
17 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-04-24).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.16995 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Cisco, Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD). Confirm exact fixed builds in the vendor advisory.
NVD ↗Reported
Weakness (CWE)
Mapped to CWE-94 Code Injection — weakness family: Injection.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
NVD ↗Reported
WeaknessCWE-94 · Code InjectionInjection
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution not established

No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.

03

Why it matters

— the attack path, told twice: adversary, then board
1

Front door — unauthenticated access narrative 1

Attacker
I gain initial local access to the ASA or FTD device as an Administrator user.
Business
An insider or compromised administrator account provides the foothold needed for privilege escalation attacks.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I exploit the privilege escalation flaw to elevate my privileges from Administrator to root.
Business
Root-level compromise of security appliances enables complete device takeover and bypass of all security controls.
3

Lateral reach — past segmentation narrative 3

Attacker
I gain unrestricted control over the firewall's configuration, logging, and traffic inspection capabilities.
Business
Attackers can disable security policies, exfiltrate data, or redirect traffic undetected through the compromised perimeter device.
04

What to do

— defensible action
  • Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • 17 reported-exploitation source(s)
  • CWE weakness mapping (NVD)
  • Catalogued by cisco (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by ciscoCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.