Security readout for executives and security teams
Plain-English summary
CVE-2019-15247 affects Cisco SPA112 2-Port Phone Adapter devices in the SPA100 ATA line. An attacker who already has management-interface credentials and local network adjacency could run code with elevated privileges. This is high business risk for voice infrastructure because successful exploitation can compromise confidentiality, integrity, and availability of the device.
Executive priority
Treat this as a high-priority network appliance issue where Cisco SPA112 devices support business voice services. It is not shown as actively exploited in the bundle, but successful exploitation could fully compromise the adapter. Prioritize exposed management interfaces and environments with weak segmentation.
Technical view
Cisco describes multiple input-validation flaws in the web-based management interface, mapped to CWE-119. Exploitation requires adjacent network access and authenticated access to the management interface, which is enabled by default. Successful exploitation can execute arbitrary code with elevated privileges. CVSS v3.0 score is 8.0 with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Cisco SPA112 adapters are deployed and their web-based management interface is reachable from local or adjacent networks. The provided bundle names Cisco SPA112 specifically; it does not provide version ranges, firmware identifiers, or full product coverage beyond the advisory title.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attack is not unauthenticated and is not described as remotely internet-exploitable; it requires adjacent access plus valid management credentials. However, low complexity and elevated code execution make compromised local environments concerning.
Researcher notes
Evidence is limited to the CVE record and Cisco advisory metadata in the bundle. Do not assume additional affected models, exploit availability, or patch details without reading Cisco’s advisory. Key validation points are management-interface reachability, authentication exposure, firmware state, and local network adjacency.
Mitigation direction
- Review Cisco’s advisory for official fixed software, workarounds, and affected-version details.
- Restrict web management access to trusted administrative networks only.
- Remove unnecessary management accounts and enforce strong unique credentials.
- Confirm whether web management is required; reduce exposure where vendor-supported.
- Prioritize remediation for voice devices on flat or weakly segmented networks.
Validation and detection
- Inventory Cisco SPA112 devices and confirm where they are deployed.
- Check whether the web-based management interface is enabled and reachable.
- Verify firmware and affected status against Cisco’s advisory.
- Review access controls for adjacent networks that can reach management interfaces.
- Confirm administrative accounts are current, necessary, and individually attributable.
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-119: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-15247 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
- High
- CVSS
- 8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8HighVector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco SPA100 Series Analog Telephone Adapters Remote Code Execution VulnerabilitiesCVE 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 Restriction of Operations within the Bounds of a Memory Buffer
Improper Restriction of Operations within the Bounds of a Memory Buffer represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.