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CVE-2026-102255

critical

Description

A Pre-authentication SSRF vulnerability exists in the SMA1000 Appliance Work Place interface due to an unintended alternate access path. By abusing this path, a remote unauthenticated attacker could potentially exploit this vulnerability to direct the appliance to issue requests on their behalf and reach internal functionality and perform unauthorized operations.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017

https://www.securityweek.com/critical-sonicwall-vulnerability-exploited-days-after-disclosure/

https://www.darkreading.com/vulnerabilities-threats/max-severity-ssrf-flaw-sonicwall-sma-devices-under-attack

https://thehackernews.com/2026/10/critical-sonicwall-sma-1000-flaw.html

https://securityaffairs.com/200816/hacking/sonicwall-patches-cvss-10-0-ssrf-flaw-as-attacks-begin.html

https://www.bleepingcomputer.com/news/security/max-severity-sonicwall-sma1000-flaw-now-exploited-in-attacks/

https://www.securityweek.com/sonicwall-and-splunk-patch-critical-vulnerabilities/

https://www.helpnetsecurity.com/2026/10/07/sonicwall-fixes-pre-auth-ssrf-flaw-in-sma-1000-appliances-cve-2026-102255/

https://www.bleepingcomputer.com/news/security/sonicwall-warns-of-max-severity-ssrf-flaw-in-sma1000-gateways/

https://thehackernews.com/2026/10/sonicwall-patches-cvss-100-pre.html

https://securityaffairs.com/200569/security/sonicwall-fixes-max-severity-pre-auth-flaw-in-sma1000-appliances.html

https://github.com/completetech-security/sonicwall-sma1000-cve-2026-102255-check

https://github.com/CompleTetech-Security/sonicwall-sma1000-cve-2026-102255-check

https://github.com/techupdate24/sonicwall-sma-1000-cve-2026-102255

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-94324

Details

Source: Mitre, NVD

Published: 2026-10-07

Updated: 2026-10-07

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 10

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00981

Vulnerability Watch

Tenable Research has classified this CVE under the following Vulnerability Watch classification, which includes active and historical (inactive) classifications. You can learn more about these classifications on our blog.

Vulnerability of Interest