A current report on active exploitation of a Palo Alto Networks GlobalProtect vulnerability is worth attention for businesses that rely on VPN access, firewalls, or an outside provider to manage perimeter security. This is not a reason to panic. It is a reason to ask whether remote access is documented, patched, and owned by someone specific.
CSO Online reported on June 2, 2026 that attackers are exploiting a GlobalProtect authentication bypass issue affecting Palo Alto Networks PAN-OS. The report describes the issue as a path for unauthorized VPN access into corporate networks. The current news report is here: CSO Online: Attackers exploit Palo Alto GlobalProtect flaw days after disclosure.
The underlying Palo Alto Networks advisory for CVE-2026-0257 says the vulnerability affects GlobalProtect portal and gateway configurations in PAN-OS and can allow an attacker to establish an unauthorized VPN connection when affected versions and configurations are present. The vendor advisory is here: Palo Alto Networks Security Advisory: CVE-2026-0257.
Why this matters to business owners
Remote access is one of the front doors into a business network. If a VPN, firewall, or remote access gateway is vulnerable, the problem is not only technical. It can affect who can reach internal systems, whether logs are reviewed, how quickly patches are applied, and whether the business can prove that vendor-managed equipment is actually being maintained.
Many small businesses do not directly administer their firewall. They rely on an MSP, network vendor, cybersecurity provider, or equipment reseller. That is normal, but it means the owner should be able to ask clear accountability questions when a vendor advisory becomes active exploitation news.
What to ask your IT provider
If your business uses Palo Alto Networks equipment, GlobalProtect, Prisma Access, or any externally reachable VPN service, ask for a short written status update. Useful questions include:
- Do we use Palo Alto GlobalProtect or another externally reachable VPN?
- Are any affected PAN-OS versions or configurations present in our environment?
- Has the firewall or Prisma Access service been updated to a fixed version?
- Were logs checked for suspicious VPN sessions or authentication override activity?
- Is remote access limited to the people, devices, and locations that actually need it?
- Who owns emergency firewall patching: our MSP, a firewall vendor, an internal admin, or someone else?
The goal is not to turn every advisory into a crisis. The goal is to know whether the business has a repeatable patch-and-review process for internet-facing systems.
Do not stop at patching
Patching is important, but it is only one part of the review. When exploitation is reported, a practical response should also include checking whether the vulnerable feature was exposed, reviewing logs for suspicious activity, confirming the fixed version, documenting exceptions, and making sure old VPN users or stale access rules are removed.
If a provider cannot show what was checked, the business is left with reassurance instead of evidence. That is especially risky for perimeter tools because a firewall can be both a protective control and a high-value target.
What this should prompt internally
Business owners can use this moment to ask a broader remote-access question: do we know every way someone can connect into the company network or cloud environment from outside the office?
That list might include VPNs, remote desktop tools, vendor support portals, cloud admin accounts, camera systems, phone system admin panels, backup portals, and line-of-business software access. If the list is unclear, the business may not know what needs urgent patching when the next advisory appears.
Where Tekmyster fits
Tekmyster can help review vendor patch recommendations, firewall ownership, and remote-access risk from an independent advisory perspective. If your provider recommends emergency work because of this Palo Alto Networks issue, a short review can help confirm whether the recommendation matches your actual exposure and whether the response includes both patching and evidence review.
Sources and further reading