What is CVE-2026-102256?
Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 appliance which in specific conditions could potentially enable a remote authenticated attacker as administrator to execute arbitrary OS commands, resulting in remote code execution.
The record classifies CVE-2026-102256 under weakness class CWE-78. Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, 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
- 7.8 — HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 0.4% probability of exploitation in the next 30 days, higher than 40.5% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 5.5/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-10-07, last modified 2026-10-08
Is CVE-2026-102256 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-2026-102256
No vendor patch reference has been recorded for CVE-2026-102256 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-2026-102256
2 tracked threats in the Threadlinqs corpus reference CVE-2026-102256, 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 .