Public proof of conceptFix available

CVE-2026-0273

Q: Is CVE-2026-0273 actively exploited?

Active exploitation of CVE-2026-0273 has not been confirmed. Its EPSS score was 1.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-0273?

CVE-2026-0273 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-06-10
Fixed in12.1.7 · 12.1.4 · 11.2.10 · 11.2.7 · 11.2.4 · 11.1.16
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrictions and run arbitrary commands as a root user. To be able to exploit this issue, the user must have access to the PAN-OS CLI or Web UI. The security risk posed by this issue is significantly minimized when CLI access is restricted to a limited group of administrators and by restricting access to the management web interface to only trusted internal IP addresses according to our recommended best practice deployment guidelines https://live.paloaltonetworks.com/t5/community-blogs/tips-amp-tricks-how-to-secure-the-management-access-of-your-palo/ba-p/464431 . This issue is applicable to PAN-OS software on PA-Series and VM-Series firewalls and on Panorama (virtual and M-Series). Cloud NGFW and Prisma® Access are not affected by this vulnerability.

Timeline

dates in UTC

2026-06-1022:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-0273?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-0273?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Palo Alto PAN-OS

Branch	Affected	Fixed in	Source
12.1	≥ 12.1.5, < 12.1.7	12.1.7	NVD
12.1	≥ 12.1.2, < 12.1.4	12.1.4	NVD
11.2	≥ 11.2.8, < 11.2.10	11.2.10	NVD
11.2	≥ 11.2.5, < 11.2.7	11.2.7	NVD
11.2	≥ 11.2.0, < 11.2.4	11.2.4	NVD
11.1	≥ 11.1.14, < 11.1.16	11.1.16	NVD
11.1	≥ 11.1.11, < 11.1.13	11.1.13	NVD
11.1	≥ 11.1.8, < 11.1.10	11.1.10	NVD
11.1	≥ 11.1.0, < 11.1.4	11.1.4	NVD
10.2	≥ 10.2.14, < 10.2.16	10.2.16	NVD
10.2	≥ 10.2.11, < 10.2.13	10.2.13	NVD
10.2	≥ 10.2.8, < 10.2.10	10.2.10	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-26-202-02 CISA1 known affected
Siemens RUGGEDCOM APE1808 with Palo Alto Networks Virtual NGFW
RUGGEDCOM APE1808 with Palo Alto Networks Virtual NGFW
SSA-104023 Siemens ProductCERT1 known affected
SSA-104023: Multiple Vulnerabilities in Palo Alto Networks PAN-OS on RUGGEDCOM APE1808 Devices
RUGGEDCOM APE1808 with Palo Alto Networks Virtual NGFW

Full record on NVD

Fix

Update Palo Alto PAN-OS to 12.1.7 · 12.1.4 · 11.2.10 · 11.2.7 · 11.2.4 · 11.1.16 · 11.1.13 · 11.1.10
Vendor fix Siemens ProductCERT SSA-104023 · 1 productContact customer support to receive patch and update information
Vendor fix CISA ICSA-26-202-02 · 1 productContact customer support to receive patch and update information

Advisories and patches

security.paloaltonetworks.comVendor Advisory

Detection

read 2026-10-23 19:24 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedHORKimhab/CVE-2026-0273

Sources

CISA-ADPSSVC decisionnone2026-06-11
OpenCVESSVC decisionnone—
CNACVSS 4.06.1read 2026-10-23
NVDCVSS 3.17.2read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score1.3 %2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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
Published: 2026-06-10
Last Modified: 2026-07-23
NVD status: Modified

Frequently asked questions

What is CVE-2026-0273?

Is CVE-2026-0273 actively exploited?

Active exploitation of CVE-2026-0273 has not been confirmed. Its EPSS score was 1.3% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-0273?

CVE-2026-0273 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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