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Type Vulnerability

Palo Alto Networks

Rapid Response: php2shell, Leaked Critical PHP Vulnerabilities (CVE-2026-109618 & CVE-2026-109619)

3 sourcesCVE-2026-109618CVE-2026-109619

At a glance

High
Suggested 24-hour window, counted from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why High

High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on Palo Alto Networks PAN-OS, treat it as Critical.

Briefing

  • Leaders should assess the potential impact of these confirmed exploits on their IT infrastructure and operations.

Questions to ask IT

  • Do we run Palo Alto Networks PAN-OS and PHP Group PHP, and which versions?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is still not patched, what mitigation is in place, and what is holding the fix up?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • A PHP memory corruption vulnerability is reported, involving two CVEs, with one confirmed as exploited in the wild.
  • Another CVE is reported as part of the same event, with confirmed exploitation and a high likelihood of attack within 30 days.

Read the original reportHelp Net Security(opens in a new tab)

Products and services involved

3 reports

Part of The PHP2Shell disclosure

Same event, different frames

Distinct often headline the same incident differently.

Pulse

Last checked 3d ago · Recheck overdue since 6 Nov 2026, 14:38 UK time

Update
5 Nov 2026, 14:38 UK time · 3d ago

held at 100.0%; ranking metadata was updated.

Listed on the — prioritise confirming exposure and patching.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom5 events

1 quiet check hidden.

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ClaimedHeadline60% confidence

    PHP Memory Corruption Vulnerability

  • ProbableSummary fact75% confidence

    Rapid Response: php2shell, Leaked Critical PHP Vulnerabilities (CVE-2026-109618 & CVE-2026-109619) Huntress

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-109618

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-109618 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-109618 has an estimated ~100% chance of attack in 30 days (100th percentile) as of 2026-10-28 — probability signal, not confirmed exploitation

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2026-109619

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2026-109619 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2026-109619 has an estimated ~100% chance of attack in 30 days (100th percentile) as of 2026-10-28 — probability signal, not confirmed exploitation