Vulnerability · CVE-2026-102255
SonicWall security advisory (AV26-1017) – Update 1
Published Oct 7, 2026 · catalog updated Oct 7, 2026 · SonicWall SMA1000
Patch now
CVE-2026-102255 is in the CISA known-exploited catalog. Confirm SonicWall SMA1000 against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- Severity
- Unknown—
- Known exploitation
- CISA KEV and VulnCheck KEV
- EPSS
- 0.48%
- Remediation
- Remediation guidance
- Affected products
- vendor SonicWall SMA1000
Serial number: AV26-1017 Date: October 7, 2026 Updated: October 9, 2026 As of October 6, 2026, SonicWall is affected by vulnerabilities in the following product: SMA1000 Models - 6210, 7210, 8200v Version 12.4.3-03670 (platform-hotfix) and prior Version 12.5.0-03082 (platform-hotfix) and prior Update 1 Open source reporting indicates that CVE-2026-102255 is being exploited in the wild. The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. SonicWall SMA1000 Series Appliances Affected By Multiple Vulnerabil
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor SonicWall SMA1000version unspecified
How to fix CVE-2026-102255
Recommended remediation
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2026-102255 is in the CISA known-exploited catalog. Confirm SonicWall SMA1000 against the vendor advisory and apply that fix. The CVSS score does not change the priority.
Which versions are affected?
Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
What should an analyst verify?
No weakness class is stored. EPSS 0.48%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 7, 2026 · CISA KEV
Known exploited
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Oct 9, 2026 · Canadian Centre for Cyber Security
Detected
Serial number: AV26-1017 Date: October 7, 2026 Updated: October 9, 2026 As of October 6, 2026, SonicWall is affected by vulnerabilities in the following product: SMA1000 Models - 6210, 7210, 8200v Version 12.4.3-03670 (platform-hotfix) and prior Version 12.5.0-03082 (platform-hotfix) and prior Update 1 Open source reporting indicates that CVE-2026-102255 is being exploited in the wild. The Cyber C
Sources
- Canadian Centre for Cyber SecurityGovernment advisoryCVE-2026-102255
Serial number: AV26-1017 Date: October 7, 2026 Updated: October 9, 2026 As of October 6, 2026, SonicWall is affected by vulnerabilities in the following product: SMA1000 Models - 6210, 7210, 8200v Version 12.4.3-03670 (platform-hotfix) and prior Version 12.5.0-03082 (platform-hot
cyber.gc.ca - CVE.orgVulnerability recordCVE-2026-102255
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-102255
30-day exploitation probability 0.5%
first.org - VulnCheck KEVConfirmed exploitationCVE-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
vulncheck.com
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.