Security readout for executives and security teams
Plain-English summary
This issue lets someone who already has privileged local access to an affected Cisco TelePresence endpoint escalate to root. It is not described as remotely exploitable from the internet. The business risk is highest where TelePresence devices are managed by many support users or are not tightly monitored.
Executive priority
Treat this as a moderate-priority hardening and remediation item. It is not presented as mass internet exploitation, but compromised support credentials could turn into full device control.
Technical view
CVE-2019-15277 is an insufficient input validation flaw in the CLI of Cisco TelePresence Collaboration Endpoint Software. An authenticated local attacker using the remote support user can send malicious traffic to an internal device listener and execute commands with root privileges. CVSS 3.0 is 6.4 with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to environments with affected Cisco TelePresence TC or CE software and attacker access as the remote support user. The provided data does not name specific fixed or vulnerable versions, so asset owners need to validate endpoint software directly against Cisco guidance.
Exploitation context
The source bundle does not indicate active exploitation, and this CVE is not marked in KEV. Exploitation requires local access, high privileges, and high attack complexity, but successful exploitation gives root-level control of the device.
Researcher notes
The main evidence gap is version specificity. The bundle identifies Cisco TelePresence TC Software as affected and describes CE Software behavior, but does not provide fixed-release details. Avoid assuming exploit availability or product scope beyond Cisco's advisory and CVE data.
Mitigation direction
- Check Cisco's advisory for affected and fixed software releases.
- Upgrade or remediate according to Cisco's published guidance.
- Restrict use of the remote support user to trusted administrators.
- Review TelePresence endpoint access paths and support workflows.
- Monitor affected devices for unexpected privileged command activity.
Validation and detection
- Inventory Cisco TelePresence endpoints and their installed software versions.
- Confirm whether Cisco's advisory lists each version as affected or fixed.
- Verify who can authenticate as the remote support user.
- Review administrative logs for unusual local CLI or support-user activity.
- Document any devices awaiting upgrade or vendor remediation.
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-264: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-15277 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
- 6.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:H/PR:H/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:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H0.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.4MediumVector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- 20191016 Cisco TelePresence Collaboration Endpoint Software Privilege Escalation VulnerabilityCVE 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.
Permissions, Privileges, and Access Controls
Permissions, Privileges, and Access Controls represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.