Security readout for executives and security teams
Plain-English summary
This flaw affects Qualcomm Snapdragon platforms used in phones, compute, connectivity, automotive, and IoT devices. A local low-privileged attacker could trigger invalid authorization related to timeout-based identity credential authentication. The published CVSS score is high because confidentiality, integrity, and availability could all be impacted.
Executive priority
Treat this as a high-priority firmware and device fleet exposure review, especially for managed mobile, automotive, and IoT environments. Urgency is higher where affected devices handle sensitive credentials or cannot be rapidly patched.
Technical view
CVE-2021-35094 is an improper verification issue in timeout-based authentication for identity credential handling in HLOS. Qualcomm lists many affected Snapdragon chipsets and related components. The vector is local, low complexity, low privileges, no user interaction, unchanged scope, with high CIA impact.
Likely exposure
Exposure is most likely through devices using the listed Qualcomm Snapdragon Auto, Compute, Connectivity, Industrial IoT, or Mobile components. Product exposure depends on the device OEM firmware and whether the relevant Qualcomm fixes were integrated.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates exploitation requires local access with low privileges and no user interaction, so it is more relevant after initial device access than as a remote entry point.
Researcher notes
Evidence is limited to the CVE record, CVE List entry, and Qualcomm bulletin reference. No public exploit status, detailed root cause, or standalone workaround is provided in the bundle. Avoid assuming exploitability beyond the local low-privilege CVSS conditions.
Mitigation direction
- Check Qualcomm’s May 2022 bulletin and device OEM advisories for CVE-2021-35094 updates.
- Apply OEM firmware or security updates that include the Qualcomm May 2022 remediation.
- Inventory devices and embedded products using the listed Snapdragon components.
- Limit untrusted app installation and local user privilege exposure on affected devices.
- Track OEM patch availability for long-lived Auto, IoT, and embedded deployments.
Validation and detection
- Compare device chipsets and modules against Qualcomm’s affected product list.
- Review OEM release notes for CVE-2021-35094 or Qualcomm May 2022 bulletin coverage.
- Verify deployed firmware or Android security patch levels against OEM guidance.
- Prioritize validation on managed mobile, vehicle, IoT, and connectivity hardware.
- Document devices without available OEM remediation as residual risk.
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.
Credential 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 lookupCVE-2021-35094 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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.
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:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qualcomm.com/company/product-security/bulletins/may-2022-bulletinCVE 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.