Rv016 Multi Wan Vpn FirmwareOperating system · Cisco
CVE-2019-15990
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an unauthenticated, remote attacker to view information displayed in the web-based management interface. The vulnerability is due to improper authorization of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to view information displayed in the web-based management interface without authentication.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceCisco Small Business RV Series Routers contain an improper authorization vulnerability in the web-based management interface. An unauthenticated, remote attacker can send crafted HTTP requests to bypass authentication and view information displayed in the management interface. This is a direct authorization bypass vulnerability, not a credential disclosure issue.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Rv016 Multi Wan Vpn FirmwareOperating system
< 4.2.3.10
Rv042 Dual Wan Vpn FirmwareOperating system
< 4.2.3.10
Rv042g Dual Gigabit Wan Vpn FirmwareOperating system
< 4.2.3.10
Rv082 Dual Wan Vpn FirmwareOperating system
< 4.2.3.10CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify router modelAccess the web-based management interface and locate the device model information, typically found in the Status, System Summary, or Device Info page. Alternatively, check the physical device label or console output.Affected if The model is one of: RV016, RV RV042, RV042g, or RV082.
-
Check firmware versionIn the web management interface, navigate to the System Summary or Firmware Upgrade page to view the currently installed firmware version. This is often displayed as a numeric build number (for example, the version shown in the admin panel under System > Status).Affected if The installed firmware version is lower than 4.2.3.10 (for example, 4.2.2.x or earlier).
-
Verify remote management accessibilityDetermine whether the web-based management interface is reachable from external networks. Check the management access settings in the web UI under System Setup > Management Access or similar, and test connectivity to the router's IP address from outside the local network.Affected if Remote management (HTTP/HTTPS access from WAN) is enabled and the interface is accessible from untrusted networks.
The environment is affected if the device is an RV016, RV042, RV042g, or RV082 router running firmware earlier than 4.2.3.10, and the management interface is remotely accessible.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor data4.2.3.10
Apply the available Cisco firmware update for affected RV Series Router models. If patches are unavailable, restrict management interface access to trusted networks only, disable remote management where feasible, and monitor for unauthorized access attempts.
Fix this in Rv016 Multi Wan Vpn Firmware
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-15990 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-15990 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data