Security readout for executives and security teams
Plain-English summary
This CVE describes unauthenticated remote access to a service on TCP port 1962 in multiple Phoenix Contact devices. If exposed, an attacker could read sensitive information or change device state. The bundle does not list exact affected models or versions, so asset verification is necessary.
Executive priority
Treat as urgent for any Phoenix Contact operational technology environment. The business risk is unauthorized access to industrial devices, with potential confidentiality, integrity, and availability impact. Prioritize exposure discovery and network restriction while confirming vendor-specific fixes.
Technical view
The issue is CWE-306: missing authentication. The CVE states remote attackers can establish TCP sessions to port 1962 and obtain sensitive information or make changes, with Create Backup directory traversal as an example. CVSS 3.1 is 9.8 critical: network, low complexity, no privileges, no user interaction, high confidentiality, integrity, and availability impact.
Likely exposure
Highest concern is Phoenix Contact ICS/OT equipment reachable from the internet, vendor networks, or flat internal networks where TCP 1962 is accessible. Exact products and versions are not enumerated in the provided bundle.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Public references indicate the weakness was publicly discussed and vendor-confirmed, but this analysis cannot claim exploitation in the wild from the supplied evidence.
Researcher notes
Affected product data in the bundle is incomplete despite the title referencing multiple Phoenix Contact devices. Avoid assuming model coverage. Focus validation on TCP 1962 exposure, missing authentication, and vendor advisory mapping rather than exploit reproduction.
Mitigation direction
- Identify Phoenix Contact devices and confirm whether TCP 1962 is exposed.
- Check VDE and Phoenix Contact guidance for affected models, versions, and fixes.
- Block TCP 1962 from untrusted networks and restrict access to management hosts.
- Segment affected ICS assets from corporate and internet-reachable networks.
- Review device configuration and backup features for vendor-recommended hardening.
Validation and detection
- Inventory Phoenix Contact assets and compare them against vendor advisory scope.
- Verify no internet-facing or broad internal access to TCP 1962 exists.
- Review firewall, VPN, and jump-host rules protecting affected devices.
- Check device logs or monitoring for unexpected TCP 1962 sessions.
- Confirm remediation status against VDE or Phoenix Contact advisories.
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-306: 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-2019-9201 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
- No
- 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.
SSVC decision data
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:H3.95.9mitreVulnerability 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://medium.com/%40SergiuSechel/misconfiguration-in-ilc-gsm-gprs-devices-leaves-over-1-200-ics-devices-vulnerable-to-attacks-over-82c2d4a91561CVE reference, mitre · x_refsource_MISC
- https://cert.vde.com/en/advisories/VDE-2019-015/CVE reference, mitre · 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.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.