Security readout for executives and security teams
Plain-English summary
This flaw could let a highly privileged support user on affected Cisco TelePresence Collaboration Endpoint software overwrite files on the device. The attacker cannot choose the file contents, but overwriting important files could crash the endpoint and disrupt conferencing services.
Executive priority
Treat as a targeted operational risk, not an emergency internet-wide threat. Prioritize environments where TelePresence availability is business-critical or where support credentials are broadly shared.
Technical view
CVE-2019-15273 is a CLI permission-enforcement weakness in Cisco TelePresence Collaboration Endpoint CE Software. An authenticated local attacker using the remote support user could submit malicious input to specific commands and overwrite arbitrary filesystem paths, potentially causing denial of service. CVSS is 6.0, with local access and high privileges required.
Likely exposure
Exposure is most likely in organizations still running affected Cisco TelePresence or Collaboration Endpoint software with remote support user access available. The provided version data is unspecified, so asset owners must verify exact affected releases against Cisco guidance.
Exploitation context
The source bundle does not cite active exploitation, and KEV is false. Exploitation requires authenticated local access with high privileges through the remote support user, which limits broad internet-scale risk but matters for insider, support-access, or compromised-admin scenarios.
Researcher notes
Evidence supports arbitrary file overwrite with no attacker control over written contents. Product naming differs in the bundle between CE Software and TC Software, and affected versions are unspecified; verify directly against Cisco’s advisory before scoping.
Mitigation direction
- Review Cisco advisory for affected and fixed release guidance.
- Inventory Cisco TelePresence and Collaboration Endpoint software versions.
- Upgrade or remediate only according to Cisco-published guidance.
- Restrict remote support user access to trusted administrators.
- Monitor for unexpected support-user authentication or device crashes.
Validation and detection
- Identify deployed Cisco TelePresence or Collaboration Endpoint devices.
- Compare running software versions with Cisco advisory scope.
- Confirm whether remote support user access is enabled and controlled.
- Review logs for support-user sessions around device instability.
- Document remediation status for each affected endpoint.
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-20: 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-15273 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/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:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H0.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6MediumVector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco TelePresence Collaboration Endpoint Software Arbitrary File Overwrite 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 Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
