What is CVE-2026-107155?

CVE-2026-107155 is a high-severity vulnerability in SonicWall Sonicos, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 8.8/10. Published 2026-11-06.

How severe is CVE-2026-107155?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in SonicWall Sonicos

CVE-2026-107155

A permissive cross-domain policy vulnerability has been identified in the SonicOS management interface, which in specific conditions could potentially enable a remote unauthenticated attacker to perform unauthorized operations.

Published 2026-11-06 · last modified 2026-11-07.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.008 (55.3th percentile), scored 2026-11-09.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

SonicWall Sonicos — versions 7.3.3-7015 and older versions, 8.2.2-8015 and older versions

Weakness classification (CWE)

CWE-942 — Permissive Cross-domain Policy with Untrusted Domains

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0014 (vendor-advisory)

Frequently asked questions

What is CVE-2026-107155?: CVE-2026-107155 is a high-severity vulnerability in SonicWall Sonicos, classified under Permissive Cross-domain Policy with Untrusted Domains. CVSS score: 8.8/10. Published 2026-11-06.
How severe is CVE-2026-107155?: High severity. CVSS v3 base score is 8.8 out of 10.