Security readout for executives and security teams
Plain-English summary
Avaya Callback Assist Administration has an XXE flaw that can let a logged-in remote attacker read information stored on an affected system. The issue affects Callback Assist 4.0.x versions before 4.7.1.1 Patch 7. The business concern is exposure of sensitive system data from a customer callback platform.
Executive priority
Treat as high priority where Callback Assist is internet-reachable or administered by many users. Patch planning should be prompt because the flaw can expose stored information and may affect availability.
Technical view
CVE-2020-7036 is CWE-611 XML External Entity processing in Avaya Callback Assist Administration. CVSS 3.1 is 8.1, with network attack vector, low complexity, low privileges required, no user interaction, high confidentiality impact, no integrity impact, and high availability impact.
Likely exposure
Exposure is limited to organizations running Avaya Callback Assist 4.0.x before 4.7.1.1 Patch 7, especially where administration functions are reachable by authenticated remote users.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability requires authentication, but the CVSS vector indicates low attack complexity and no user interaction once access exists.
Researcher notes
Focus validation on version evidence, administration surface exposure, and authentication boundaries. Do not assume unauthenticated exploitability; the CVSS vector requires low privileges. Evidence supplied does not include exploit details, telemetry, or named compensating controls beyond the fixed version boundary.
Mitigation direction
- Confirm whether Avaya Callback Assist is deployed and in scope.
- Upgrade affected Callback Assist 4.0.x systems to 4.7.1.1 Patch 7 or later.
- Review the Avaya advisory for exact vendor remediation instructions.
- Restrict administration access to trusted networks and required administrators only.
- Monitor vendor guidance for any additional compensating controls.
Validation and detection
- Inventory Callback Assist hosts and record installed version and patch level.
- Verify no affected 4.0.x instance remains below 4.7.1.1 Patch 7.
- Confirm administrative interfaces are not broadly reachable from untrusted networks.
- Review access logs for unexpected authenticated administration activity.
- Document remediation evidence for vulnerability management tracking.
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-611: 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 lookupCVE-2020-7036 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
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H2.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://downloads.avaya.com/css/P8/documents/101075450CVE 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 Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.