Security readout for executives and security teams
Plain-English summary
This Qualcomm Snapdragon issue could let someone bypass authentication checks in affected components because signature verification and hashing happen in the wrong order. The source data rates it high severity, but the CVSS vector indicates physical access is required. Business risk is highest for products embedding listed Snapdragon chipsets and relying on their security boundary.
Executive priority
Treat as high priority for fleets containing affected Qualcomm components, especially physically accessible or safety-adjacent devices. Urgency depends on OEM patch availability and whether the organization can confirm exposure through hardware inventory.
Technical view
CVE-2021-35113 is an authentication bypass in Qualcomm Snapdragon product lines caused by improper ordering of hashing and signature verification. The CVSS 3.1 score is 7.3, with physical attack vector, low complexity, no privileges, no user interaction, changed scope, and high confidentiality and integrity impact.
Likely exposure
Exposure is likely through devices, vehicles, IoT, mobile, wearable, compute, and industrial products using the listed Qualcomm parts. The bundle does not identify specific OEM device models, vulnerable firmware versions, or fixed firmware versions, so asset-to-chipset mapping is required.
Exploitation context
The provided bundle does not show active exploitation, and KEV is false. CVSS indicates an attacker needs physical access, but no privileges or user interaction. No public exploit details are provided in the supplied sources.
Researcher notes
The source bundle gives strong product-family and component evidence but lacks CWE mapping, exploit evidence, exact firmware ranges, and fixed versions. Avoid assuming device-level exposure without OEM confirmation. Focus validation on chipset presence, firmware lineage, and vendor bulletin status.
Mitigation direction
- Inventory products using the listed Qualcomm Snapdragon components.
- Check Qualcomm and OEM advisories for firmware or platform updates.
- Apply vendor-provided firmware or security updates when available.
- Restrict physical access to exposed or high-value affected devices.
- Prioritize unsupported devices for replacement or compensating controls.
Validation and detection
- Map hardware BOMs against the affected Qualcomm component list.
- Confirm OEM firmware levels and security bulletin coverage.
- Verify whether devices remain supported for security updates.
- Document devices where patch status cannot be confirmed.
- Track remediation exceptions for physically exposed deployments.
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-2021-35113 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
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/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.
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:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N0.95.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qualcomm.com/company/product-security/bulletins/august-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.