Palo Alto Networks
Rapid Response: php2shell, Leaked Critical PHP Vulnerabilities (CVE-2026-109618 & CVE-2026-109619)
At a glance
Actively exploited in the wild — prioritise confirming exposure.
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
- Confirm exposure and remediation status for affected products
Vulnerability facts
Full CVE detail CVE-2026-109618- 9.2 · CriticalExploitable over the network without any account, under specific conditions, and no one has to click or open anything. High impact on confidentiality, integrity and availability.CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Listed: attacks using it have been seen
- Elevated attack likelihood (~100% in 30 days)
These facts are for CVE-2026-109618. This event covers 1 more CVE, each with its own record.
- CVE-2026-109618 is confirmed as exploited in the wild according to the US known-exploited catalogue.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
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
- Palo Alto Networks PAN-OS93% match confidence · CVE-2026-109618
- PHP Group PHP88% match confidence · CVE-2026-109618
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
held at 100.0%; ranking metadata was updated.
Listed on the — prioritise confirming exposure and patching.
1 quiet check hidden.
Sources
- Help Net SecurityNews
Cybersecurity jobs available right now: October 20, 2026
- BusinessCloudNews
Why UK startups cannot hire their way out of the cyber skills shortage
Rapid Response: php2shell, Leaked Critical PHP Vulnerabilities (CVE-2026-109618 & CVE-2026-109619)
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

