Threats / Palo Alto Networks / CVE-2019-1579
CVE-2019-1579
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Palo Alto Networks PAN-OS vulnerability
Remote code execution in Palo Alto Networks PAN-OS when GlobalProtect Portal or GlobalProtect Gateway is enabled, exploitable without authentication via use-after-free or format string vulnerability.
Verdict
Today item, not a backlog item.
Critical remote code execution affecting Palo Alto Networks PAN-OS deployments with GlobalProtect services exposed. High exploitation activity observed in ransomware campaigns. Immediate patching required for internet-facing instances.
CISA KEV Yes · 2022-01-103Ransomware use Flagged3EPSS 0.39317 (verify live)4Exploit Weaponized · public PoC5
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
11 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 2022-01-10), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.39317 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Palo Alto Networks, PAN-OS. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-134 Format String.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
WeaknessCWE-134 · Format String
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 Portal or Gateway interface on an exposed PAN-OS device.
Business
Attacker gains unauthenticated remote code execution on the security appliance, bypassing perimeter defenses.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I execute arbitrary commands with the privileges of the PAN-OS process to establish persistence and lateral movement.
Business
The compromised firewall becomes an internal pivot point for ransomware deployment across the network.
3
Lateral reach — past segmentation narrative 3
Attacker
I exfiltrate configuration data, credentials, and network topology from the appliance.
Business
Sensitive security configurations and authentication material are exposed, enabling further compromise of protected systems.
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