Security readout for executives and security teams
Plain-English summary
CVE-2025-64052 affects Fanvil x210 V2 firmware 2.12.20. An unauthenticated attacker on the same local network may execute system commands on the phone. This is not described as internet-remote exploitation, but compromised or guest-accessible internal networks could make affected phones a foothold or disruption point.
Executive priority
Treat as a targeted internal-network risk. Prioritize if these phones are deployed in sensitive offices, call centers, or networks with weak segmentation. If no affected firmware is present or phones are isolated, urgency is lower.
Technical view
The CVE describes CWE-77 command injection in Fanvil x210 V2 2.12.20 with CVSS 5.1. The vector is local network adjacent/local access, low complexity, no privileges, no user interaction, with low confidentiality and integrity impact and no availability impact recorded. Public sources provided do not name a vendor patch or fixed version.
Likely exposure
Organizations using Fanvil x210 V2 phones running firmware 2.12.20, especially on flat or guest-reachable VoIP networks. Exposure appears limited to attackers with local network access based on the CVSS vector and description.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The public advisory reference indicates unauthenticated local-network command execution, but this assessment avoids exploit details and does not assume weaponized exploitation beyond the cited description.
Researcher notes
Evidence is limited to the CVE metadata and one public advisory link. Affected product data in the CVE record is sparse, while the description names Fanvil x210 V2 2.12.20. No patch, exploit-in-the-wild claim, or vendor bulletin is included in the provided sources.
Mitigation direction
- Identify Fanvil x210 V2 devices and record firmware versions.
- Check Fanvil or trusted vendor channels for fixed firmware or official guidance.
- Restrict management and VoIP device access to trusted network segments.
- Block guest, user, and untrusted VLAN access to affected phones.
- Monitor affected devices for unexpected configuration changes or outbound connections.
Validation and detection
- Confirm whether any Fanvil x210 V2 devices run firmware 2.12.20.
- Verify phones are not reachable from guest or general user networks.
- Review vendor advisories for a fixed version or mitigation notice.
- Check asset management for unmanaged or legacy Fanvil phones.
- Review network logs for unusual access to phone interfaces.
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-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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-2025-64052 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
- 5.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N2.52.5CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.1MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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://github.com/SpikeReply/advisories/blob/main/cve/fanvil/cve-2025-64052.mdCVE reference, mitre
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 Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.