Security readout for executives and security teams
Plain-English summary
CVE-2025-21415 is a critical Azure AI Face Service issue where an already authorized attacker could bypass authentication by spoofing and gain higher privileges remotely. The impact could include compromise of confidentiality, integrity, and availability. The provided sources identify Microsoft guidance but do not include detailed fixed versions.
Executive priority
Treat this as urgent for any environment using Azure AI Face Service. The score is critical and the impact is broad, but active exploitation is not established in the provided sources. Prioritize inventory, vendor guidance, access review, and monitoring.
Technical view
The vulnerability is classified as CWE-290, authentication bypass by spoofing, in Microsoft Azure AI Face Service. CVSS 3.1 is 9.9 with network attack vector, low complexity, low privileges required, no user interaction, changed scope, and high CIA impact. The bundle lists a Microsoft advisory with patch tag.
Likely exposure
Exposure is most relevant to organizations using Azure AI Face Service, especially where authorized users, applications, or service principals can access the service over a network. The bundle does not provide affected version ranges or tenant-specific conditions.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector includes proof-of-concept exploit maturity, but that is not the same as confirmed real-world exploitation.
Researcher notes
Key gaps are exact affected configurations, remediation mechanics, and exploitation details. The available data supports authentication bypass by spoofing with privilege elevation over the network by an authorized attacker. Avoid assuming all Azure AI services are affected; the bundle names Azure AI Face Service only.
Mitigation direction
- Review the MSRC advisory for Microsoft remediation guidance and apply any required service updates or configuration changes.
- Inventory Azure AI Face Service resources across all subscriptions and environments.
- Limit Azure AI Face Service permissions to the minimum required roles and identities.
- Review exposed network access paths and reduce unnecessary reachability.
- Monitor Microsoft advisory updates for changed severity, remediation, or detection guidance.
Validation and detection
- Confirm whether Azure AI Face Service is enabled in any subscription.
- Map users, applications, managed identities, and service principals with Face Service access.
- Review Azure activity logs for unexpected privilege or access changes.
- Check service logs for unusual Face Service authentication or API activity.
- Verify MSRC remediation guidance has been applied or acknowledged.
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-290: 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-21415 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
- 9.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
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:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C3.16microsoftVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C
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
- Azure AI Face Service Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory, patch
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.
Authentication Bypass by Spoofing
Authentication Bypass by Spoofing represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.