Security readout for executives and security teams
Plain-English summary
CVE-2023-0655 is an information disclosure issue in SonicWall Email Security. An unauthenticated remote attacker could access an error page that reveals user email addresses. The direct impact is limited to confidentiality, but exposed addresses can support phishing, account targeting, and reconnaissance.
Executive priority
Treat as a medium-priority confidentiality issue. It is unlikely to justify emergency response alone, but exposed email addresses can increase phishing risk and should be remediated during normal vulnerability management cycles.
Technical view
The issue is CWE-209: generation of error messages containing sensitive information. SonicWall Email Security 10.0.19.7431 and earlier are listed as affected. CVSS 3.1 is 5.3, network exploitable, low complexity, no privileges or user interaction, with low confidentiality impact only.
Likely exposure
Exposure is most likely where SonicWall Email Security 10.0.19.7431 or earlier is reachable by unauthenticated network users. The bundle does not identify the specific page, deployment mode, or whether cloud-hosted versions are affected.
Exploitation context
The provided sources do not indicate active exploitation, and the CVE is not listed as KEV in the bundle. The reported behavior is unauthenticated access to a sensitive error page, not code execution or service disruption.
Researcher notes
Evidence is limited to the CVE metadata and SonicWall reference. Do not infer broader data exposure, authentication bypass beyond the described error page, or exploit availability. The important validation question is version exposure against the listed affected range.
Mitigation direction
- Inventory SonicWall Email Security deployments and record exact versions.
- Check SonicWall PSIRT SNWLID-2023-0002 for vendor-approved updates or mitigations.
- Remediate systems running 10.0.19.7431 or earlier per SonicWall guidance.
- Limit unauthenticated network exposure where operationally feasible.
- Monitor for suspicious probing of Email Security web error pages.
Validation and detection
- Confirm whether any instance runs SonicWall Email Security 10.0.19.7431 or earlier.
- Verify whether the service is reachable from untrusted networks.
- Review SonicWall advisory details before declaring a system fixed.
- Check logs for unusual unauthenticated requests around error handling paths.
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-209: 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 lookupCVE-2023-0655 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
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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.
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:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0002CVE reference
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.
Generation of Error Message Containing Sensitive Information
Generation of Error Message Containing Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.