Security readout for executives and security teams
Plain-English summary
This is a critical authentication bypass in Sangoma FreePBX versions named in the CVE title. An unauthenticated network attacker could potentially gain administrative access, creating major confidentiality, integrity, and availability risk for phone systems and related business operations.
Executive priority
Treat as immediate priority for any FreePBX deployment, especially internet-facing systems. Known exploitation, unauthenticated access, and full CIA impact make this a business continuity and fraud-risk issue, not just routine patching.
Technical view
CVE-2019-19006 is described as incorrect access control/CWE-287 in FreePBX 15.0.16.26 and below, 14.0.13.11 and below, and 13.0.197.13 and below. The CVSS 3.1 score is 9.8 with network, low-complexity, no-privilege, no-user-interaction characteristics.
Likely exposure
Exposure is most likely where FreePBX administrative interfaces are reachable from untrusted networks. The structured affected list lacks CPE detail, so teams should verify installed FreePBX branches and exact versions against vendor guidance.
Exploitation context
CISA KEV marks CVE-2019-19006 as known exploited. The source bundle also includes FreePBX’s remote admin authentication bypass advisory and Check Point research on criminal monetization of Asterisk servers. No exploit steps are needed to treat this as urgent.
Researcher notes
The bundle supports critical severity, authentication bypass, affected version ranges from the title, and KEV exploitation. The affected-product metadata is incomplete, so version validation should rely on FreePBX/Sangoma advisory data rather than CPE matching alone.
Mitigation direction
- Identify all FreePBX deployments and their externally reachable management interfaces.
- Upgrade affected FreePBX versions according to Sangoma/FreePBX vendor guidance.
- Restrict administrative access to trusted networks or VPN paths.
- Review FreePBX and system logs for unexpected administrative activity.
- Prioritize incident response if internet-exposed affected versions are found.
Validation and detection
- Inventory FreePBX versions across production, backup, and lab systems.
- Confirm whether administrative endpoints are internet-accessible.
- Check CISA KEV tracking for remediation expectations and status.
- Review authentication and admin-change logs around exposure windows.
- Validate that vendor-recommended updates are installed successfully.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2019-19006 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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.
CISA KEV status
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:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.freepbx.org/category/blog/CVE reference · x_refsource_MISC
- https://wiki.freepbx.org/display/FOP/2019-11-20+Remote+Admin+Authentication+BypassCVE reference · x_refsource_CONFIRM
- https://community.freepbx.org/t/freepbx-security-vulnerability-sec-2019-001/62772CVE reference · x_refsource_MISC
- https://pastebin.com/2CdsQMKWCVE reference · x_refsource_MISC
- https://research.checkpoint.com/2020/inj3ctor3-operation-leveraging-asterisk-servers-for-monetization/CVE reference · third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-19006CVE reference · government-resource
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 Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.