Security readout for executives and security teams
Plain-English summary
This high-severity Qualcomm Snapdragon Auto flaw affects SA8540P and SA9000P platforms. A backend driver may mishandle buffer initialization, creating a buffer overflow risk. For affected automotive programs, impact could include compromise of confidentiality, integrity, and availability. The source bundle does not name public exploitation or detailed fixed firmware versions.
Executive priority
High priority for automotive products or fleets using the affected Snapdragon Auto platforms. The business decision is mainly supply-chain and firmware governance: confirm whether your OEM or integrator has absorbed Qualcomm’s security bulletin updates before assuming exposure is closed.
Technical view
CVE-2021-35114 is an improper buffer initialization issue in a Snapdragon Auto backend driver that can lead to buffer overflow. CVSS 3.1 is 8.4 with local attack vector, low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to Qualcomm Snapdragon Auto deployments using SA8540P or SA9000P. Practical exposure depends on OEM integration, firmware lineage, and whether the relevant Qualcomm June 2022 security bulletin fixes have been adopted by the vehicle or device vendor.
Exploitation context
The CVSS vector indicates local access is required, with no privileges or user interaction. The source bundle marks CISA KEV as false and provides no cited evidence of active exploitation. No exploit details are provided in the available sources.
Researcher notes
Available public data is sparse: no CWE is listed, no exploit status is cited, and exact fixed builds are not included in the CVE bundle. Treat the Qualcomm bulletin and OEM firmware advisories as authoritative for remediation mapping.
Mitigation direction
- Inventory products and programs using SA8540P or SA9000P.
- Check Qualcomm June 2022 bulletin and OEM advisories for applicable firmware updates.
- Request fixed firmware or BSP confirmation from the responsible vendor.
- Prioritize updates where local access or diagnostic interfaces are realistically reachable.
- Apply compensating controls limiting unauthorized local or service-port access.
Validation and detection
- Confirm whether deployed hardware uses SA8540P or SA9000P.
- Map current firmware, BSP, and OEM release identifiers to vendor security guidance.
- Verify update status against Qualcomm June 2022 bulletin references.
- Check asset and supply-chain records for Snapdragon Auto dependencies.
- Document any unresolved vendor response or missing fixed-version evidence.
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-2021-35114 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
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/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:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:N/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/june-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.