Palo Alto Networks
Qilin Hits Palo Alto VPN Flaw [2026] - https://tech-insider.org/
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
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Palo Alto Networks PAN-OS, 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-2026-0257- 7.8 · HighExploitable over the network without any account, and no one has to click or open anything. High impact on subsequent confidentiality and subsequent integrity; low on confidentiality.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:A/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:N/R:A/V:D/RE:M/U:Red
- Listed: attacks using it have been seen
- Elevated attack likelihood (~95.6% in 30 days)
No technical write-up beyond these facts and the summary below yet.
Next steps
- Confirm whether affected products/versions are present and prioritise patching or mitigations
Summary
- Alleged Qilin ransomware leader extradited from Japan to face charges in
- CVE-2026-0257 is confirmed as exploited in the wild (US known-exploited catalogue)
- CVE-2026-0257 has an estimated ~96.9% chance of attack in 30 days (99.9th percentile) as of 2026-10-23 — probability signal, not confirmed exploitation
- Authoritative catalogues report active exploitation of this vulnerability.
Read the original reportHelp Net Security(opens in a new tab)
Products and services involved
- Palo Alto Networks PAN-OS93% match confidence · CVE-2026-0257
Same event, different frames
Distinct often headline the same incident differently.
Pulse
Last checked 3d ago · Recheck overdue since 6 Nov 2026, 13:07 UK time
- Story21 Oct 2026, 13:10 UK time · 21 Oct
Linked reporting from Help Net Security (independent original reporter).
Read source (Help Net Security) - Story24 Oct 2026, 14:46 UK time · 24 Oct
Linked reporting from Infosecurity Magazine (independent original reporter).
Read source (Infosecurity Magazine) - Story24 Oct 2026, 14:46 UK time · 24 Oct
Linked reporting from Computing UK (independent original reporter).
Read source (Computing UK)
3 entries so far. The timeline chart appears once this story has more history.
Sources
- Help Net SecurityNews
Ransomware gangs have been exploiting Palo Alto GlobalProtect VPN flaw since June
- Infosecurity MagazineNews
Months-Old Palo Alto VPN Vulnerability Remains a Target for Ransomware Groups
- Computing UKNews
Alleged Qilin ransomware leader extradited from Japan to face charges in Germany
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
Palo Alto Networks PAN-OS Authentication Bypass Vulnerability
- ConfirmedCVE identifier95% confidence
Event involves CVE-2026-0257
- ConfirmedKnown-exploited catalogue98% confidence
CVE-2026-0257 is confirmed as exploited in the wild (US known-exploited catalogue)
- ConfirmedEstimated attack likelihood95% confidence
CVE-2026-0257 has an estimated ~96.9% chance of attack in 30 days (99.9th percentile) as of 2026-10-23 — probability signal, not confirmed exploitation
- ProbableSummary fact75% confidence
Alleged Qilin ransomware leader extradited from Japan to face charges in Germany Computing UK

