Security readout for executives and security teams
Plain-English summary
This vulnerability affects SonicWall SMA100 appliances and can be reached without login. An attacker can use a directory traversal flaw to check whether files exist on the appliance. Because CISA lists it in KEV, treat exposed affected systems as already at real-world risk.
Executive priority
High priority. This is a known-exploited vulnerability in remote access infrastructure, a class of asset often exposed to the internet and valuable to attackers. Confirm scope and remediation status promptly.
Technical view
CVE-2019-7483 is an unauthenticated CWE-22 directory traversal issue in the SMA100 handleWAFRedirect CGI. The source states it allows testing for file presence on the server. Affected versions are SMA100 9.0.0.3 and earlier. CVSS 3.1 is 7.5, with high confidentiality impact only.
Likely exposure
Exposure is most likely where SonicWall SMA100 9.0.0.3 or earlier is reachable over the network, especially internet-facing remote access deployments. The bundle does not identify other affected products.
Exploitation context
CISA KEV status supports known exploitation in the wild. The provided sources do not include exploit mechanics, exploitation volume, or attacker attribution, so those details should not be assumed.
Researcher notes
The evidence supports unauthenticated file-presence testing through directory traversal, not arbitrary file read or code execution. Keep validation non-invasive and version/configuration-based unless vendor guidance authorizes deeper testing.
Mitigation direction
- Inventory all SonicWall SMA100 appliances and record firmware versions.
- Prioritize SMA100 9.0.0.3 and earlier for urgent remediation.
- Check SonicWall PSIRT SNWLID-2019-0018 for vendor-approved fixes or mitigations.
- Reduce external exposure until vendor remediation is confirmed.
- Review appliance logs for suspicious unauthenticated file-probing behavior.
Validation and detection
- Confirm whether any SMA100 appliance runs version 9.0.0.3 or earlier.
- Verify whether affected appliances are internet-accessible or broadly reachable internally.
- Confirm SonicWall vendor guidance has been applied to each affected appliance.
- Check vulnerability management records for CVE-2019-7483 coverage.
- Document residual exposure where remediation cannot be completed immediately.
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-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-7483 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
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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
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:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0018CVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-7483CVE reference · 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.