Security readout for executives and security teams
Plain-English summary
A logged-in remote user could crash an affected Cisco SPA100 Series analog telephone adapter through its web management interface. The business risk is voice-service disruption, not data theft. Successful exploitation can make the device stop responding and require manual recovery.
Executive priority
Treat this as a moderate operational availability risk for sites relying on these adapters for voice service. Prioritize exposed or broadly reachable management interfaces first.
Technical view
Cisco describes improper validation of user-supplied web management requests. The CVSS vector is network-accessible, low complexity, low privilege, no user interaction, with high availability impact and no confidentiality or integrity impact.
Likely exposure
Exposure is most likely where Cisco SPA100 Series ATAs, specifically the listed SPA112 2-Port Phone Adapter, have web management reachable from user, admin, VPN, or other internal networks.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Exploitation requires authenticated remote access to the web management interface and a crafted request; no unauthenticated path is cited.
Researcher notes
The provided evidence identifies a denial-of-service condition through authenticated web management requests. Sources do not provide safe validation details, patch specifics, or exploit-in-the-wild evidence in the bundle.
Mitigation direction
- Check Cisco’s advisory for affected firmware and remediation guidance.
- Restrict ATA web management access to trusted administration networks only.
- Remove internet exposure for ATA management interfaces.
- Use strong, unique credentials for device administration accounts.
- Plan manual recovery procedures for voice adapters that stop responding.
Validation and detection
- Inventory Cisco SPA100 Series ATA devices and record model and firmware.
- Confirm whether any listed SPA112 devices are deployed.
- Review network paths to the web management interface.
- Verify administrative access is limited to approved users and networks.
- Check vendor advisory status before production testing.
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
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CWE-399: Exact CWE lookup
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Open ATT&CK lookupCVE-2019-15258 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:L/UI:N/S:U/C:N/I:N/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:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco SPA100 Series Analog Telephone Adapters Web Management Interface Denial of Service VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
- https://www.tenable.com/security/research/tra-2019-44CVE reference · x_refsource_MISC
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.
Resource Management Errors
Resource Management Errors represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.