What is CVE-2026-102258?

CVE-2026-102258 is a medium-severity vulnerability in SonicWall Sma1000, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-07.

How severe is CVE-2026-102258?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in SonicWall Sma1000

CVE-2026-102258

Post-authentication Stored Cross-Site Scripting (XSS) vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to store and potentially execute arbitrary JavaScript code in the Appliance Management Console (AMC).

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-07 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

SonicWall Sma1000 — versions 12.4.3-03526 (platform-hotfix) and older versions, 12.5.0-02952 (platform-hotfix) and older versions

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017 (vendor-advisory)

Frequently asked questions

What is CVE-2026-102258?: CVE-2026-102258 is a medium-severity vulnerability in SonicWall Sma1000, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-10-07.
How severe is CVE-2026-102258?: Medium severity. CVSS v3 base score is 6.1 out of 10.