CVE-2026-0283Network attack vector

Unauthorized site-to-site VPN via missing authentication

Published Jul 9, 2026 · Updated Jul 9, 2026

Authentication bypass in PAN-OS 10.2, 11.1, 11.2, and 12.1 allows remote attackers to establish unauthorized site-to-site VPN connections. Palo Alto Networks has not disclosed which LSVPN authentication check fails or how a network request bypasses it. Exposure requires a firewall using LSVPN with configured satellites; exploitation joins an unauthorized site to the VPN and grants access to resources reachable through that connection.

CVSS severity7.2
High
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in PAN-OS 10.2, 11.1, 11.2, and 12.1 allows remote attackers to establish unauthorized site-to-site VPN connections. Palo Alto Networks has not disclosed which LSVPN authentication check fails or how a network request bypasses it. Exposure requires a firewall using LSVPN with configured satellites; exploitation joins an unauthorized site to the VPN and grants access to resources reachable through that connection.

The record

CVE
CVE-2026-0283
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Palo Alto Networks
Product
PAN-OS
Classifications
CWE-306, CAPEC-115, T1133
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.2.0 <10.2.18-h8 changes=[{"at":"10.2.18-h8","status":"unaffected"},{"at":"10.2.16-h9","status":"unaffected"},{"at":"10.2.13-h23","status":"unaffected"},{"at":"10.2.10-h39","status":"unaffected"},{"at":"10.2.7-h36","status":"unaffected"}]
  2. Affected versionversion=11.1.0 <11.1.16 changes=[{"at":"11.1.16","status":"unaffected"},{"at":"11.1.13-h9","status":"unaffected"},{"at":"11.1.10-h30","status":"unaffected"},{"at":"11.1.7-h8","status":"unaffected"},{"at":"11.1.6-h35","status":"unaffected"},{"at":"11.1.4-h35","status":"unaffected"}]
  3. Affected versionversion=11.2.0 <11.2.13 changes=[{"at":"11.2.13","status":"unaffected"},{"at":"11.2.10-h12","status":"unaffected"},{"at":"11.2.7-h18","status":"unaffected"},{"at":"11.2.4-h20","status":"unaffected"}]
  4. Affected versionversion=12.1.0 <12.1.8 changes=[{"at":"12.1.8","status":"unaffected"},{"at":"12.1.7-h2","status":"unaffected"},{"at":"12.1.4-h8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Palo Alto Networks · PAN-OSversion=10.2.0 <10.2.18-h8 changes=[{"at":"10.2.18-h8","status":"unaffected"},{"at":"10.2.16-h9","status":"unaffected"},{"at":"10.2.13-h23","status":"unaffected"},{"at":"10.2.10-h39","status":"unaffected"},{"at":"10.2.7-h36","status":"unaffected"}]; version=11.1.0 <11.1.16 changes=[{"at":"11.1.16","status":"unaffected"},{"at":"11.1.13-h9","status":"unaffected"},{"at":"11.1.10-h30","status":"unaffected"},{"at":"11.1.7-h8","status":"unaffected"},{"at":"11.1.6-h35","status":"unaffected"},{"at":"11.1.4-h35","status":"unaffected"}]; version=11.2.0 <11.2.13 changes=[{"at":"11.2.13","status":"unaffected"},{"at":"11.2.10-h12","status":"unaffected"},{"at":"11.2.7-h18","status":"unaffected"},{"at":"11.2.4-h20","status":"unaffected"}]; version=12.1.0 <12.1.8 changes=[{"at":"12.1.8","status":"unaffected"},{"at":"12.1.7-h2","status":"unaffected"},{"at":"12.1.4-h8","status":"unaffected"}]

Published CVSS scores

7.8Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:H/SI:L/SA:N
7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CAPEC-115Authentication Bypass
T1133External Remote Services

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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