Security readout for executives and security teams
Plain-English summary
This vulnerability affects Cisco SPA100-series analog telephone adapters, with the bundle specifically listing the Cisco SPA112. An attacker already on an adjacent network and authenticated to the device web interface could run code with elevated privileges. Business risk is highest where legacy voice adapters remain reachable from user or guest networks.
Executive priority
Treat as a high-priority legacy voice infrastructure issue. Prioritize discovery and containment of exposed management interfaces, then follow Cisco guidance for remediation or replacement decisions.
Technical view
CVE-2019-15252 covers multiple input-validation flaws in the web-based management interface of Cisco SPA100 Series ATAs. The interface is enabled by default. Exploitation requires adjacent network access and low privileges, with no user interaction, and can lead to elevated arbitrary code execution. CVSS v3.0 is 8.0 high.
Likely exposure
Likely exposure is limited to environments still operating Cisco SPA100-series ATAs, especially Cisco SPA112 devices, with web management reachable from adjacent networks. The provided bundle does not define exact affected firmware versions.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source states active exploitation. The described attack requires authentication to the web management interface and adjacent network access, which narrows but does not remove operational risk.
Researcher notes
Evidence supports authenticated adjacent RCE through improper input validation in the default-enabled web management interface. The bundle does not provide exploit details, affected firmware ranges, fixed versions, or proof of active exploitation.
Mitigation direction
- Review Cisco advisory for fixed software, replacement, or official mitigation guidance.
- Inventory Cisco SPA112 and SPA100-series ATA devices across voice and branch networks.
- Restrict management interface access to trusted administrative networks where operationally possible.
- Verify strong, unique administrator credentials on affected ATA management interfaces.
Validation and detection
- Identify Cisco SPA112 or SPA100-series ATAs in asset inventory and network scans.
- Check whether web-based management is enabled on discovered devices.
- Confirm management interfaces are not reachable from guest, user, or untrusted adjacent networks.
- Record firmware versions and compare them with Cisco advisory guidance.
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
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ATT&CK lookup starting points
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CWE-119: Exact CWE lookup
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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-2019-15252 mapping review
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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.