Security readout for executives and security teams
Cisco Registered Envelope Service exposed some user-related information because of an insecure configuration that allowed improper indexing. An unauthenticated remote attacker could use public search results to discover sensitive application details, including usernames, for follow-on reconnaissance. Exposure is limited to organizations that used Cisco Registered Envelope Service and had affected indexed content. The source bundle does not provide affected versions, CPEs, customer configuration details, or patch identifiers. Prioritize as a moderate confidentiality issue. It is unlikely to be business-critical alone, but exposed usernames can support phishing, credential attacks, and targeted reconnaissance. Confirm use of the Cisco service and close any indexing exposure. Mitigation focus: Review Cisco's advisory for official remediation or service-specific guidance.; Confirm whether your organization used Cisco Registered Envelope Service.; Ask Cisco support for affected configuration and remediation status if unclear..
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
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ATT&CK lookup starting points
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Open ATT&CK lookupCVE-2018-15448 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.3MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20181107 Cisco Registered Envelope Service Information Disclosure VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
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.
Configuration
Configuration represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.