What is CVE-2026-102255?
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.
The record classifies CVE-2026-102255 under weakness classes CWE-918, CWE-441. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 3 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 10 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS (FIRST)
- 0.4% probability of exploitation in the next 30 days, higher than 39.2% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 6.6/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-07
Is CVE-2026-102255 being exploited?
It currently carries a trending score of 49 in the Threadlinqs vulnerability feed.
Affected products and versions
- SonicWall: SMA1000
How to fix CVE-2026-102255
No vendor patch reference has been recorded for CVE-2026-102255 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-102255
2 tracked threats in the Threadlinqs corpus reference CVE-2026-102255, either in the campaign’s CVE list or as an indicator on the campaign record.
- SonicWall SMA1000 Pre-Auth SSRF (CVE-2026-102255, CVSS 10.0) and Critical Splunk Enterprise Vulnerabilities (CVE-2026-76268, CVE-2026-76281, CVE-2026-76284) Patched — CRITICAL · 2026-10-08
- SonicWall SMA1000 Four Flaws Patched Incl. Critical Pre-Auth SSRF CVE-2026-102255 (CVSS 10.0) — CRITICAL · 2026-10-07
Sources
Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on .