CVE-2026-0250: GlobalProtect App: Buffer Overflow Vulnerability during connection to Portal or Gateway
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-11 15:49 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man in the middle attacker to disrupt system processes and potentially execute arbitrary code with SYSTEM privileges. This vulnerability is triggered during the processing of requests and responses exchanged between Portal and Gateway. The GlobalProtect app on iOS is not affected.
Description quoted from the CVE record (assigned by palo_alto, published 2026-05-13).
Weakness: CWE-787 Out-of-bounds Write
How it can be exploited
Exploitable from an adjacent network with low attack complexity only when specific conditions are present needing no privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
CISA assessment (SSVC): CISA has no evidence of exploitation. Automatable: no. Technical impact: total.
Public exploit evidence (Exploit Observer)
Exploit Observer has no public exploit code naming this CVE. Check Exploit Observer for anything new.
Live scores
- EPSS
- 0.004
low predicted chance of attack - VEDAS
- 0.052
little exploit evidence - On CISA KEV
- Not listed
- Detection rule
- No public rule yet
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Palo Alto Networks GlobalProtect App | from 6.3.0 before 6.3.3-h9 (6.3.3-999) from 6.2.0 before 6.2.8-h10 (6.2.8-948) | Not stated |
| Palo Alto Networks GlobalProtect App | from 6.1 before 6.1.13 | Not stated |
| Palo Alto Networks GlobalProtect App | from 6.3.0 before 6.3.3-h2 (6.3.3-42) from 6.0.0 before 6.0.11 | Not stated |
| Palo Alto Networks GlobalProtect App | from 6.0 before 6.0.13 | Not stated |
| Palo Alto Networks GlobalProtect App | from 6.0 before 6.0.14 | Not stated |
| Palo Alto Networks GlobalProtect UWP App | from 6.3 before 6.3.3-h10 | Not stated |
| Palo Alto Networks GlobalProtect App | Not stated | All is not affected |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
How to fix it
Fixed versions stated in the CVE record: 6.3.3-h9 (6.3.3-999), 6.2.8-h10 (6.2.8-948), 6.1.13, 6.3.3-h2 (6.3.3-42), 6.0.11, 6.0.13, 6.0.14, 6.3.3-h10.
Vendor guidance:
- https://security.paloaltonetworks.com/CVE-2026-0250 (vendor-advisory)
How to detect it
There is no open VEDAS detection rule for this bug yet. It is listed on the detection gaps page if CISA has confirmed attacks.
Advisories on this CVE
References
Vendor advisories and patches
- https://security.paloaltonetworks.com/CVE-2026-0250 (vendor-advisory)
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.
Supporting partners
