CVE-2026-0258Network attack vector

Unauthenticated outbound request forgery via IKEv2 certificate URLs

Published May 13, 2026 · Updated May 13, 2026

SSRF in the IKEv2 implementation of Palo Alto Networks PAN-OS allows remote attackers to trigger outbound requests or service interruption. The IKEv2 certificate URL fetcher processes certificate URLs without adequately restricting request destinations; the exact validation failure is undisclosed. Exposure requires a Site-to-Site VPN Gateway configured for IKEv2, and exploitation can access unintended destinations or interrupt firewall availability.

CVSS severity8.3
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the IKEv2 implementation of Palo Alto Networks PAN-OS allows remote attackers to trigger outbound requests or service interruption. The IKEv2 certificate URL fetcher processes certificate URLs without adequately restricting request destinations; the exact validation failure is undisclosed. Exposure requires a Site-to-Site VPN Gateway configured for IKEv2, and exploitation can access unintended destinations or interrupt firewall availability.

The record

CVE
CVE-2026-0258
Published
May 13, 2026
Updated
May 13, 2026
Vendor
Palo Alto Networks
Product
PAN-OS
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 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-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34 changes=[{"at":"10.2.7-h34","status":"unaffected"},{"at":"10.2.10-h36","status":"unaffected"},{"at":"10.2.13-h21","status":"unaffected"},{"at":"10.2.16-h7","status":"unaffected"},{"at":"10.2.18-h6","status":"unaffected"}]
  2. Affected versionversion=11.1.0 <11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33 changes=[{"at":"11.1.4-h33","status":"unaffected"},{"at":"11.1.6-h32","status":"unaffected"},{"at":"11.1.7-h6","status":"unaffected"},{"at":"11.1.10-h25","status":"unaffected"},{"at":"11.1.13-h5","status":"unaffected"},{"at":"11.1.15","status":"unaffected"}]
  3. Affected versionversion=11.2.0 <11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17 changes=[{"at":"11.2.4-h17","status":"unaffected"},{"at":"11.2.7-h13","status":"unaffected"},{"at":"11.2.10-h6","status":"unaffected"},{"at":"11.2.12","status":"unaffected"}]
  4. Affected versionversion=12.1.0 <12.1.7, 12.1.4-h5 changes=[{"at":"12.1.4-h5","status":"unaffected"},{"at":"12.1.7","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-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34 changes=[{"at":"10.2.7-h34","status":"unaffected"},{"at":"10.2.10-h36","status":"unaffected"},{"at":"10.2.13-h21","status":"unaffected"},{"at":"10.2.16-h7","status":"unaffected"},{"at":"10.2.18-h6","status":"unaffected"}]; version=11.1.0 <11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33 changes=[{"at":"11.1.4-h33","status":"unaffected"},{"at":"11.1.6-h32","status":"unaffected"},{"at":"11.1.7-h6","status":"unaffected"},{"at":"11.1.10-h25","status":"unaffected"},{"at":"11.1.13-h5","status":"unaffected"},{"at":"11.1.15","status":"unaffected"}]; version=11.2.0 <11.2.12, 11.2.10-h6, 11.2.7-h13, 11.2.4-h17 changes=[{"at":"11.2.4-h17","status":"unaffected"},{"at":"11.2.7-h13","status":"unaffected"},{"at":"11.2.10-h6","status":"unaffected"},{"at":"11.2.12","status":"unaffected"}]; version=12.1.0 <12.1.7, 12.1.4-h5 changes=[{"at":"12.1.4-h5","status":"unaffected"},{"at":"12.1.7","status":"unaffected"}]

Published CVSS scores

8.3Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
4.8Palo Alto NetworksCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

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-918Server-Side Request Forgery (SSRF)
CAPEC-664Server-Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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