Security readout for executives and security teams
Plain-English summary
This vulnerability lets a nearby, authenticated attacker take over affected Cisco SPA100 analog telephone adapters through their web management interface. Successful exploitation could allow code execution with elevated privileges, affecting confidentiality, integrity, and availability. The management interface is enabled by default, which increases operational concern for exposed voice infrastructure.
Executive priority
Treat this as high priority for environments still using Cisco SPA100 ATAs, especially in flat office or voice networks. Prioritize inventory, management-plane restriction, and vendor-guided remediation.
Technical view
CVE-2019-15248 covers multiple input-validation flaws in the Cisco SPA100 Series ATA web-based management interface. The bundle identifies Cisco SPA112 2-Port Phone Adapter as affected. The CVSS 3.0 score is 8.0: adjacent network access, low privileges, no user interaction, and high CIA impact.
Likely exposure
Exposure is most likely where Cisco SPA112 or related SPA100 ATA devices remain deployed and their web management interface is reachable from local, voice, office, or unmanaged adjacent networks.
Exploitation context
The source bundle does not show public exploitation or CISA KEV listing. Exploitation requires adjacent network position and authenticated access to the management interface, then crafted requests to the affected device.
Researcher notes
Evidence supports high-impact authenticated adjacent RCE via improper input validation, mapped to CWE-119. The bundle does not provide version ranges, fixed releases, proof-of-concept status, or active exploitation evidence.
Mitigation direction
- Inventory Cisco SPA112 and SPA100 ATA devices in all office and voice networks.
- Review Cisco’s advisory for affected versions, fixed releases, and supported remediation.
- Restrict web management access to trusted administrative networks only.
- Disable unnecessary management exposure where operationally possible.
- Remove weak, shared, or default management credentials.
Validation and detection
- Confirm whether Cisco SPA112 or SPA100 ATA devices are deployed.
- Check whether the web management interface is enabled and locally reachable.
- Compare device firmware and model details against Cisco’s advisory.
- Review management logs for unusual authenticated access or configuration changes.
- Verify network controls limit access to approved administrators.
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-2019-15248 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.