Security readout for executives and security teams
Plain-English summary
This flaw lets someone reach the router’s web management interface and view information without logging in. The business risk is information leakage from edge network devices, not direct takeover based on the supplied sources. The CVSS score is medium because confidentiality impact is limited and integrity or availability impact is not identified.
Executive priority
Treat this as a moderate edge-device confidentiality issue. It is not described as system compromise, but routers sit at sensitive network boundaries, so exposed management interfaces should be reviewed promptly and remediated according to Cisco guidance.
Technical view
CVE-2019-15990 affects Cisco Small Business RV016, RV042, RV042G, and RV082 router firmware. Improper authorization of HTTP requests in the web-based management interface allows unauthenticated remote viewing of information displayed by that interface. The supplied record maps this to CWE-285 and CVSS 3.0 score 5.3.
Likely exposure
Exposure is most likely where affected Cisco Small Business RV Series router web-management interfaces are reachable from untrusted networks. The bundle does not provide affected firmware version ranges, deployment prevalence, or whether WAN management must be enabled.
Exploitation context
The source bundle describes remote unauthenticated exploitation through crafted HTTP requests, but does not provide evidence of active exploitation. The CVE is not marked as CISA KEV in the supplied data. Avoid assuming exploitation in the wild without additional evidence.
Researcher notes
The public bundle lacks exact affected firmware versions, fixed releases, and Cisco mitigation details. The analysis should remain scoped to unauthenticated information disclosure via improper HTTP request authorization in the web management interface.
Mitigation direction
- Inventory RV016, RV042, RV042G, and RV082 routers in use.
- Check Cisco’s advisory for fixed firmware or vendor remediation guidance.
- Limit management-interface access to trusted administrative networks.
- Disable unnecessary remote management exposure where operationally possible.
- Prioritize replacement planning if vendor-supported fixes are unavailable.
Validation and detection
- Confirm whether affected router models are deployed.
- Record firmware versions and compare them with Cisco’s advisory.
- Verify management interfaces are not exposed to the public internet.
- Review access logs for unexpected management-interface requests.
- Document compensating controls for devices awaiting vendor 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-285: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2019-15990 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 (3.0)
- 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
- 20191120 Cisco Small Business Routers RV016, RV042, RV042G, and RV082 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.
Improper Authorization
Improper Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.