Security readout for executives and security teams
Plain-English summary
This Qualcomm Snapdragon vulnerability can crash affected systems during RSA key import, causing an availability impact rather than data theft or tampering. It matters most for device fleets that rely on Qualcomm-based mobile, IoT, automotive, compute, connectivity, wearable, or audio platforms.
Executive priority
Treat as a moderate operational resilience issue. Prioritize remediation for managed fleets, automotive, industrial IoT, and devices where crashes could disrupt business services or safety-adjacent workflows.
Technical view
CVE-2021-35135 is a local, unauthenticated null pointer dereference during RSA key import in multiple Qualcomm Snapdragon product families. The CVSS 3.1 score is 6.2, with high availability impact and no stated confidentiality or integrity impact.
Likely exposure
Exposure is likely in products using the listed Qualcomm Snapdragon chipsets or platforms. Real organizational exposure depends on OEM device models, firmware lineage, and whether the vulnerable RSA key import path is present and reachable.
Exploitation context
The source bundle does not cite active exploitation, and CISA KEV status is false. The CVSS vector is local, low-complexity, no-privilege, no-user-interaction, with impact limited to availability.
Researcher notes
Public details are limited to a null pointer dereference during RSA key import and a broad affected Qualcomm product list. No CWE, exploit details, or product-specific OEM fixes are provided in the supplied sources.
Mitigation direction
- Inventory devices using affected Qualcomm Snapdragon components.
- Check Qualcomm and OEM advisories for firmware guidance.
- Apply relevant OEM firmware or security updates when available.
- Prioritize shared, safety-sensitive, or hard-to-reboot devices.
- Restrict untrusted local code where updates are unavailable.
Validation and detection
- Map device chipsets against Qualcomm's affected product list.
- Compare firmware patch levels with OEM security bulletins.
- Verify whether RSA key import functionality is present.
- Review vendor release notes for CVE-2021-35135 coverage.
- Track unresolved devices in vulnerability management records.
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.
CVE-2021-35135 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
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N/UI:N/S:U/C:N/I:N/A:H2.53.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.qualcomm.com/company/product-security/bulletins/july-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.