Security readout for executives and security teams
Plain-English summary
CVE-2026-15409 is a critical SonicWall SMA1000 Work Place interface SSRF issue. An unauthenticated remote attacker could make the appliance send requests to unintended locations. Because CISA lists it in KEV, known exploitation is reported. Business risk is highest for exposed SMA1000 appliances supporting remote access.
Executive priority
Treat this as an emergency remote-access appliance issue. Confirm exposure immediately, follow SonicWall remediation guidance, and prioritize any internet-facing SMA1000 systems because known exploitation is reported by CISA.
Technical view
The flaw is CWE-918 server-side request forgery in SonicWall SMA1000. Listed affected versions are 12.4.3-03245 and 12.5.0-02283, with default status unknown. CVSS 3.1 is 10.0, AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating unauthenticated network exploitation with potential high confidentiality, integrity, and availability impact.
Likely exposure
Organizations running SonicWall SMA1000 appliances with the Work Place interface, especially versions 12.4.3-03245 or 12.5.0-02283. Exposure is higher if the interface is reachable from the internet or untrusted networks. The bundle does not prove whether other versions are affected.
Exploitation context
CISA KEV status indicates known exploitation. The provided sources do not include exploit mechanics, observed campaigns, payload details, or target sectors. Treat exposed appliances as urgent until vendor guidance and local inventory confirm status.
Researcher notes
Evidence supports critical severity, SSRF classification, unauthenticated network attack vector, and KEV exploitation status. Public bundle evidence is incomplete on fixed versions, mitigations, exploit details, and whether versions outside the two listed builds are affected.
Mitigation direction
- Review SonicWall advisory SNWLID-2026-0008 for fixed versions or official mitigations.
- Prioritize remediation for internet-facing SMA1000 appliances first.
- Restrict Work Place interface access to trusted networks where operationally possible.
- Monitor vendor and CISA guidance for updates to affected versions and deadlines.
- Do not rely on version assumptions beyond the listed affected builds.
Validation and detection
- Inventory all SonicWall SMA1000 appliances and record exact firmware versions.
- Check whether the Work Place interface is exposed to untrusted networks.
- Compare deployed versions against 12.4.3-03245 and 12.5.0-02283.
- Review appliance and network logs for unexpected outbound requests from SMA1000 devices.
- Track CISA KEV and SonicWall advisory updates during remediation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-15409 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0008CVE reference, sonicwall · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-15409CVE reference, CISA-ADP · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.