Threats / Palo Alto Networks / CVE-2024-3400
CVE-2024-3400
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Palo Alto Networks PAN-OS vulnerability
Palo Alto Networks PAN-OS GlobalProtect contains an unauthenticated command injection vulnerability allowing root-level code execution on firewalls. Actively exploited in ransomware campaigns.
Verdict
Today item, not a backlog item.
An unauthenticated remote attacker can inject arbitrary commands into PAN-OS GlobalProtect, achieving root privilege execution on affected firewalls. This critical vulnerability is being actively weaponized in ransomware operations, enabling attackers to compromise network perimeter security.
CISA KEV Yes · 2024-04-125Ransomware use Flagged5EPSS 0.99999 (verify live)6Exploit Weaponized · public PoC7CVSS 103CISA SSVC Exploitation: active · Automatable: yes · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
441 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 2024-04-12), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.99999 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) · Affected: Palo Alto Networks, PAN-OS. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-77 Command Injection, CWE-20 Improper Input Validation — weakness family: Injection.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog the same day the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a functional/weaponized public exploit). Catalog entries: Metasploit module, nuclei template. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution 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 board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious request to the GlobalProtect endpoint without authentication credentials.
Business
The organization's firewall perimeter is exposed to remote compromise without requiring valid credentials.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I inject shell metacharacters into input fields to break out of intended command context and execute arbitrary system commands.
Business
Attackers gain unrestricted command execution capability at the highest privilege level on critical network infrastructure.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute commands with root privileges to install backdoors, exfiltrate data, or pivot to internal network segments.
Business
The compromised firewall becomes a beachhead for lateral movement, data theft, and ransomware deployment across the enterprise.
4
Data at risk — exfiltration narrative 4
Attacker
I deploy ransomware payloads or encrypt critical systems accessible through the compromised firewall.
Business
Operations halt, sensitive data is encrypted or stolen, and the organization faces extortion demands and regulatory penalties.
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’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by palo_altoCNA
Credited with finding itPalo Alto Networks thanks Volexity for detecting and identifying this issue.finderCapability Development Group at Bishop Fox for helping us verify the fixes and improve threat prevention signatures.remediation verifier