Security readout for executives and security teams
Plain-English summary
CVE-2018-15611 is a local privilege escalation in Avaya Aura Communication Manager. A user who already has privileged local system access may be able to gain root privileges, turning a limited administrative foothold into full system control.
Executive priority
Treat this as a targeted infrastructure hardening issue, not an internet-scale emergency. Prioritize remediation where Avaya Communication Manager supports critical voice operations or where many administrators, vendors, or service accounts have local access.
Technical view
The issue affects the local system administration component of Avaya Aura Communication Manager 6.3.x and 7.x before 7.1.3.1. It is mapped to CWE-284, with CVSS 6.3: local attack vector, high complexity, high privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running affected Avaya Aura Communication Manager versions where privileged local system access is possible. This is most relevant to voice infrastructure administrators, managed service access, jump hosts, and compromised privileged accounts.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability requires authenticated privileged local access and user interaction, so it is not described as remotely exploitable from the public internet.
Researcher notes
Evidence is limited to the CVE record and Avaya reference in the bundle. Do not assume remote exploitability, public exploit availability, or broader Avaya product impact. The key validation question is whether affected local administration components remain deployed on vulnerable versions.
Mitigation direction
- Review the Avaya advisory for supported remediation guidance.
- Upgrade affected 7.x deployments to 7.1.3.1 or later where applicable.
- For 6.3.x systems, confirm vendor-supported upgrade or mitigation options.
- Restrict local administrative access to trusted, monitored users only.
- Audit privileged access paths to Communication Manager hosts.
Validation and detection
- Inventory all Avaya Aura Communication Manager deployments and versions.
- Identify systems running 6.3.x or 7.x before 7.1.3.1.
- Review local administrator accounts and recent privileged sessions.
- Confirm whether Avaya remediation has been applied.
- Check logs for unexpected privilege changes or root-level activity.
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-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCVE-2018-15611 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 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:R/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:R/S:U/C:H/I:H/A:H0.35.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.3MediumVector: CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://downloads.avaya.com/css/P8/documents/101052550CVE reference · x_refsource_CONFIRM
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 Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.