CVE-2026-102255
SonicWall SMA1000 Appliance Server-Side Request Forgery
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.
INFO
Published Date :
Oct. 7, 2026, 1:17 p.m.
Last Modified :
Oct. 7, 2026, 4:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the appliance to the latest secure version.
- Disable unnecessary network access to the appliance.
- Restrict access to internal resources from the appliance.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-102255.
| URL | Resource |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-102255 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-102255
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-102255 vulnerability anywhere in the article.
-
Dark Reading
Maximum-Severity SSRF Flaw in SonicWall SMA Devices Under Attack
Rob Wright,Senior News Director,Dark ReadingOctober 12, 20264 Min ReadSource: Michael Vi via Alamy Stock PhotoSonicWall customers are on the defensive once again, as threat actors are actively exploit ... Read more
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The Hacker News
⚡ Weekly Recap: Helpdesk 0-Days, Rogue Certs, ShinyHunters Arrest, AI-Fooling Malware and More
Some meetings last longer than it took attackers to jump on a newly disclosed security flaw this week. Within hours, they were already testing it. That's not much time to read the warning, let alone d ... Read more
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The Hacker News
Critical SonicWall SMA 1000 Flaw Targeted in 135 Exploitation Attempts After Patch
Threat actors have been observed exploiting a recently disclosed critical security flaw in SonicWall Secure Mobile Access (SMA) 1000 appliances within days of public disclosure. The vulnerability, tra ... Read more
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security.nl
SonicWall SMA1000-kwetsbaarheid actief misbruik bij aanvallen
vrijdag 9 oktober 2026, 15:00 door Redactie, 0 reactiesLaatst bijgewerkt: Vandaag, 15:05 Een kritieke kwetsbaarheid in de SonicWall SMA1000-gateway, met een maximale CVSS-impactscore van 10.0, wordt a ... Read more
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security.nl
SonicWall SMA1000-kwetsbaarheid actief misbruikt bij aanvallen
vrijdag 9 oktober 2026, 15:00 door Redactie, 0 reactiesLaatst bijgewerkt: 09-10-2026, 15:05 Een kritieke kwetsbaarheid in de SonicWall SMA1000-gateway, met een maximale CVSS-impactscore van 10.0, word ... Read more
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TheCyberThrone
Critical NetScaler RCE Vulnerability CVE-2026-107406
Executive SummaryCitrix has disclosed CVE-2026-107406, a critical memory overflow vulnerability affecting Citrix NetScaler ADC and NetScaler Gateway under specific SAML authentication configurations. ... Read more
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TheCyberThrone
CVE-2026-102255: Critical Pre-Auth SSRF Vulnerability in SonicWall SMA1000
A new critical vulnerability in SonicWall SMA1000 appliances deserves immediate attention from organizations using the platform as an internet-facing remote-access gateway.Tracked as CVE-2026-102255, ... Read more
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The Hacker News
SonicWall Patches CVSS 10.0 Pre-Authentication SSRF Flaw in SMA1000 Appliances
SonicWall has released hotfixes for four flaws in its SMA1000 appliances, the gateways that give remote workers access to a company's network and applications. The most serious could allow an attacker ... Read more
The following table lists the changes that have been made to the
CVE-2026-102255 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 07, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Added SSVC {'id': 'CVE-2026-102255', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-07T15:50:57.013778Z'} -
New CVE Received by [email protected]
Oct. 07, 2026
Action Type Old Value New Value Added 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. Added CWE CWE-441 Added CWE CWE-918 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/102xxx/CVE-2026-102255.json">CVE-2026-102255</a> Added Reference https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0017