Security readout for executives and security teams
Plain-English summary
Avaya conferencing servers running affected 9.x versions have an XML parsing flaw that can let a logged-in remote attacker read sensitive local information or disrupt service. The issue affects the Media Server component and is rated high because exploitation needs low complexity but does require authentication.
Executive priority
Treat this as a priority remediation for organizations using Avaya conferencing infrastructure. It is not confirmed as actively exploited in the provided sources, but the business impact includes sensitive information exposure and conferencing service disruption.
Technical view
CVE-2020-7037 is a CWE-611 XML External Entity vulnerability in Avaya Equinox Conferencing Media Server, now Avaya Meetings Server. Affected versions are all 9.x releases before 9.1.11. CVSS 3.1 is 8.1: network exploitable, low complexity, low privileges, no user interaction, with high confidentiality and availability impact.
Likely exposure
Exposure is most likely where Avaya Equinox Conferencing or Avaya Meetings Server 9.x before 9.1.11 is deployed and reachable by authenticated remote users. The provided sources do not identify affected hosted services, appliances beyond this product, or specific internet exposure patterns.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not marked as CISA KEV. Exploitation requires authenticated remote access. Confirmed potential outcomes are information disclosure from the affected system and possible denial of service.
Researcher notes
The evidence identifies product, affected version range, weakness class, CVSS vector, and vendor reference. It does not provide technical internals, indicators of compromise, proof-of-concept status, or detailed mitigation beyond moving off affected versions and following Avaya guidance.
Mitigation direction
- Inventory Avaya Equinox Conferencing and Avaya Meetings Server deployments.
- Upgrade affected 9.x versions before 9.1.11 to a non-affected vendor-supported release.
- Review the Avaya advisory for supported fixes and operational constraints.
- If upgrade is delayed, request Avaya-supported compensating controls.
Validation and detection
- Check product and Media Server component versions against the 9.x before 9.1.11 affected range.
- Confirm whether authenticated remote users can reach the affected conferencing service.
- After remediation, verify the system no longer reports an affected version.
- Review logs for unusual authenticated access or service disruption around XML-processing paths.
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-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-2020-7037 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://support.avaya.com/css/P8/documents/101075574CVE 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.