# CVE-2026-102257 — SonicWall SMA1000

> As of 2026-10-08, CVE-2026-102257 is a HIGH-severity vulnerability in SonicWall SMA1000, CVSS v3.1 7.2, EPSS 0.6% (49.6th percentile). Threadlinqs Intelligence links 2 tracked threat campaigns to CVE-2026-102257, most recently “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”.

**Last updated:** 2026-10-08

## What is CVE-2026-102257?

A Zip Slip vulnerability in the in the SMA1000 Appliance Management Console (AMC) interface allows an attacker to extract files outside the intended destination directory using a specially crafted archive, resulting in remote code execution.

The record classifies CVE-2026-102257 under weakness class [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs high-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:** 7.2 — HIGH (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.6% probability of exploitation in the next 30 days, higher than 49.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.6/10 — 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-2026-102257 being exploited?

It currently carries a trending score of 52 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [SonicWall](https://intel.threadlinqs.com/vendors/sonicwall): SMA1000

## How to fix CVE-2026-102257

No vendor patch reference has been recorded for CVE-2026-102257 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-2026-102257

2 tracked threats in the Threadlinqs corpus reference CVE-2026-102257, 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](https://intel.threadlinqs.com/threat/TL-2026-3176) — CRITICAL · 2026-10-08
- [SonicWall SMA1000 Four Flaws Patched Incl. Critical Pre-Auth SSRF CVE-2026-102255 (CVSS 10.0)](https://intel.threadlinqs.com/threat/TL-2026-3022) — CRITICAL · 2026-10-07

## Sources

Enriched from CVE.org, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [psirt.global.sonicwall.com — vendor advisory](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-102257
Full detection coverage and IOCs for threats exploiting CVE-2026-102257 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp