Security readout for executives and security teams
Plain-English summary
Cisco NFVIS has an authentication bypass in its web management interface. A remote unauthenticated attacker could gain limited management access, see some configuration details, and potentially upload a virtual machine image. This is not described as full system takeover, but it affects infrastructure management and should be treated as meaningful operational risk.
Executive priority
Handle as a moderate-priority infrastructure management issue. It is not reported as actively exploited or critical, but unauthenticated access to NFVIS management can expose configuration data and introduce integrity risk through image upload capability.
Technical view
CVE-2019-1946 is a CWE-287 authentication flaw in Cisco Enterprise NFV Infrastructure Software. The issue is an incorrect authentication implementation in the web-based management interface. Exploitation requires network access and no credentials or user interaction. Reported impact is low confidentiality and integrity impact, no availability impact, CVSS 3.0 score 6.5.
Likely exposure
Exposure is limited to organizations running Cisco Enterprise NFV Infrastructure Software with the vulnerable web-based management interface reachable by attackers. The provided data does not specify affected versions, so teams must use Cisco advisory guidance to determine exact release exposure.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Cisco describes exploitation as a crafted authentication request to the management interface, but no public exploit status is provided here.
Researcher notes
Evidence is strongest for the vulnerability class, attack preconditions, and impact from the CVE and Cisco advisory metadata. The bundle does not include exact affected versions, fixed versions, workaround details, or exploitation-in-the-wild evidence, so avoid broader claims without checking Cisco guidance.
Mitigation direction
- Review Cisco advisory for affected and fixed NFVIS release guidance.
- Upgrade or apply vendor-recommended fixes where Cisco identifies a vulnerable release.
- Restrict NFVIS web management access to trusted administrative networks where feasible.
- Monitor management activity for unexpected access or VM image upload attempts.
- Prioritize remediation for internet-facing or broadly reachable management interfaces.
Validation and detection
- Inventory Cisco Enterprise NFV Infrastructure Software deployments.
- Identify whether NFVIS web management interfaces are reachable from untrusted networks.
- Compare installed versions with Cisco advisory affected and fixed release information.
- Review management logs for unusual authentication or configuration viewing activity.
- Check for unexpected virtual machine image upload events.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-1946 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
- 6.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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:L/A:N3.92.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20190807 Cisco Enterprise NFV Infrastructure Software Web-Based Management Interface Authentication Bypass 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 Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.