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Fencer Vulns
critical 9.1

CVE-2026-0257 kev+ ransomware in the critical feed json

PAN-OS: GlobalProtect Authentication Bypass Vulnerabilities

published 2026-05-13 5 mo ago modified 2026-10-26 13 d ago also EUVD-2026-30104

cvss
9.1
version 3.1, NVD
cisa kev
Exploited
added 2026-05-29, used in ransomware
epss
95.6%
EPSS 95.6% chance of exploitation in 30 days, percentile 99.8%
public exploits
0
none known, plus a Nuclei check

Summary

Authentication bypass vulnerabilities in the GlobalProtect portal and gateway of Palo Alto Networks PAN-OS® software allows the attacker to bypass security restrictions and establish an unauthorized VPN connection.

Panorama and Cloud NGFW are not impacted by these issues.

Patch / fix

cisa required action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  • Palo Alto Networks PAN-OS 10.2.10-h36, 10.2.13-h21, 10.2.16-h7, 10.2.18-h6, 10.2.18-h6, 10.2.16-h7, 10.2.13-h21, 10.2.10-h36, 10.2.7-h34, 11.1.4-h33, 11.1.6-h32, 11.1.7-h6, 11.1.10-h25, 11.1.13-h5, 11.1.15, 11.1.15, 11.1.13-h5, 11.1.10-h25, 11.1.7-h6, 11.1.6-h32, 11.1.4-h33, 11.2.4-h17, 11.2.7-h14, 11.2.10-h7, 11.2.12, 11.2.12, 11.2.10-h7, 11.2.7-h14, 11.2.4-h17, 12.1.4-h6, 12.1.7, 12.1.7, 12.1.4-h6
  • Palo Alto Networks Prisma Access 10.2.10-h36, 11.2.7-h13

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-139-02 updated cvss 9.3

Siemens RUGGEDCOM APE1808 Devices

  • Siemens RUGGEDCOM APE1808
    affected: vendor fix, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. Published
  2. CISA SSVC: exploitation active
  3. Added to CISA KEV
  4. CISA patch deadline

Known exploited

Added
5 mo ago
Patch by
2026-06-01 (5 mo ago)
Ransomware
Known to be used in ransomware campaigns
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor, product
Palo Alto Networks, PAN-OS
CISA name
Palo Alto Networks PAN-OS Authentication Bypass Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
total
Assessed
5 mo ago

Exploit prediction

95.64% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Palo Alto Networks PAN-OS - Authentication Bypass nuclei detection template

CVSS scores

assigned by version score vector
CNA 4.0 7.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:A/AU:N/R:A/V:D/RE:M/U:Red
CNA 4.0 7.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N/E:A/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:A/V:D/RE:M/U:Red
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

  • Palo Alto Networks Cloud NGFW
  • Palo Alto Networks PAN-OS
  • Palo Alto Networks Prisma Access
  • Siemens RUGGEDCOM APE1808

Classification

Weakness
  • CWE-565 Reliance on Cookies without Validation and Integrity Checking
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.