CVE-2026-0283
published 2026-07-09CVE-2026-0283: An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access…
PriorityP348high7.2CVSS 3.1
AVNACLPRNUINSCCLILAN
EPSS
0.21%
11.8th percentile
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Affected
210 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| palo_alto_networks | pan-os | >= 10.2.0 < 10.2.18-h8 | 10.2.18-h8 |
| palo_alto_networks | pan-os | >= 11.1.0 < 11.1.16 | 11.1.16 |
| palo_alto_networks | pan-os | >= 11.2.0 < 11.2.13 | 11.2.13 |
| palo_alto_networks | pan-os | >= 12.1.0 < 12.1.8 | 12.1.8 |
| paloalto | cloud_ngfw | — | — |
| paloalto | pan-os | — | — |
| paloalto | prisma_access | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
| paloaltonetworks | pan-os | — | — |
CVSS provenance
nvdv3.17.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
nvdv4.04.5MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:N/E:U/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:U/V:D/RE:M/U:Amber
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Palo Alto
PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
vendor_paloalto·CVSS 7.8
CVE-2026-0283 CWE-306 PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
PAN-OS: Authentication Bypass Vulnerability in Large Scale VPN (LSVPN)
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
Affected products: Cloud NGFW, PAN-OS, Prisma Access
Solution: VERSION MINOR VERSION SUGGESTED SOLUTION
Cloud NGFW All No action needed.
PAN-OS 12.1 12.1.5 through 12.1.7-h* Upgrade to 12.1.7-h2 or 12.1.8 or later.
12.1.2 through 12.1.4-h* Upgrade to 12.1.4-h8 or 12.1.8 or later.
PAN-OS 11.2 11.2.11 through 11.2.12 Upgrade to 11.2.13 or later.
11.2.8 through 11.2.10-h* Upgrade to 11.2.10-h12
VulDB
Palo Alto PAN-OS LSVPN improper authorization (EUVD-2026-42678)
vuldb·2026-07-09·CVSS 4.5
CVE-2026-0283 [MEDIUM] Palo Alto PAN-OS LSVPN improper authorization (EUVD-2026-42678)
A vulnerability, which was classified as very critical, has been found in Palo Alto PAN-OS. This impacts an unknown function of the component LSVPN. This manipulation causes improper authorization.
This vulnerability is tracked as CVE-2026-0283. The attack is possible to be carried out remotely. No exploit exists.
GHSA
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establ
ghsa_unreviewed·2026-07-09
CVE-2026-0283 [MEDIUM] CWE-306 An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establ
An authentication bypass vulnerability in Large Scale VPN ( LSVPN) functionality of Palo Alto Networks PAN-OS software allows an attacker with network access to bypass security restrictions and establish an unauthorized site-to-site VPN connection.
Panorama, Cloud NGFW, and Prisma® Access are not impacted by this vulnerability.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-09
Published