Security readout for executives and security teams
Plain-English summary
This vulnerability affects Cisco SPA100 Series analog telephone adapters, with the supplied record listing Cisco SPA112. An authenticated attacker on the same adjacent network could use the default-enabled web management interface to run code with elevated privileges. The main business risk is compromise of voice-adapter infrastructure and possible disruption or pivoting inside local networks.
Executive priority
Treat this as a high-priority legacy voice-infrastructure risk if Cisco SPA100 devices remain deployed. It is not shown as actively exploited in the supplied sources, but successful compromise could give elevated code execution on network-connected telephony equipment.
Technical view
CVE-2019-15244 is an improper input validation issue affecting the web-based management interface of Cisco SPA100 Series ATAs. The supplied CVE data maps it to CWE-119 and CVSS 3.0 score 8.0. Exploitation requires adjacent-network access and valid credentials, but no user interaction. Successful exploitation allows arbitrary code execution with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in environments still running Cisco SPA100 Series ATAs, specifically SPA112 per the supplied affected list, with the web management interface reachable from adjacent networks. The source bundle does not specify affected firmware versions or internet exposure.
Exploitation context
The bundle does not show CISA KEV listing or any cited evidence of active exploitation. Exploitation is not unauthenticated: the attacker must authenticate to the web management interface and be adjacent to the target network.
Researcher notes
Key constraints are adjacent attack vector, low attack complexity, required low privileges, and default-enabled web management. The supplied data lacks firmware ranges, patch status, and proof-of-concept details. Avoid assuming additional affected models beyond the Cisco SPA100 framing and the listed SPA112 product.
Mitigation direction
- Identify any Cisco SPA100 Series ATAs, especially SPA112 devices.
- Review Cisco advisory cisco-sa-20191016-spa-rce for vendor-supported fixes or mitigations.
- Apply Cisco-recommended updates, replacement guidance, or configuration changes where available.
- Restrict web management access to trusted administrative networks using existing controls.
- Disable unnecessary management exposure where supported and operationally safe.
Validation and detection
- Inventory voice adapters and confirm model names and firmware versions.
- Check whether the web-based management interface is enabled and reachable.
- Verify management access is limited to authorized administrative paths.
- Confirm valid credentials are unique, controlled, and not shared broadly.
- Document whether Cisco guidance has been applied or is unavailable.
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-2019-15244 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.