Security readout for executives and security teams
Plain-English summary
This Qualcomm Snapdragon flaw can let a local, low-privileged actor trigger a serious availability impact in affected devices. The sources describe improper length validation during FIPS event processing, not data theft or integrity compromise. Business urgency depends on whether your products or fleet use the listed Snapdragon components and whether OEM firmware updates exist.
Executive priority
Treat as a moderate operational resilience issue. It is not described as remotely exploitable or data-stealing, but affected Qualcomm-based devices may face high availability impact. Prioritize inventory and vendor update tracking over emergency response unless business-critical exposed devices are confirmed.
Technical view
CVE-2021-35119 is a potential out-of-bounds read in FIPS event processing caused by insufficient validation of a firmware-provided length. CVSS 3.1 is 5.5: local attack vector, low complexity, low privileges, no user interaction, unchanged scope, and high availability impact only.
Likely exposure
Exposure is likely in devices, embedded systems, vehicles, IoT, compute, mobile, or connectivity products using the listed Qualcomm Snapdragon components. The source bundle does not identify specific OEM device models, firmware versions, or deployment prevalence.
Exploitation context
The bundle does not cite active exploitation, and KEV status is false. The CVSS vector indicates exploitation requires local access with low privileges and no user interaction. Practical risk is higher where untrusted local code can run on affected devices.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, affected component list, and Qualcomm bulletin reference. The bundle does not provide root-cause details beyond length validation in FIPS event processing, nor does it name exploit maturity, proofs of concept, or exact patched versions.
Mitigation direction
- Inventory assets using the listed Qualcomm Snapdragon components.
- Review Qualcomm’s June 2022 bulletin and relevant OEM firmware advisories.
- Apply vendor-supplied firmware or security updates when available.
- Prioritize devices where local untrusted code execution is plausible.
- Track OEM update availability for managed mobile, IoT, auto, and embedded fleets.
Validation and detection
- Map device hardware identifiers to the affected Qualcomm component list.
- Confirm current firmware or BSP level against Qualcomm and OEM advisories.
- Check vulnerability management tooling for CVE-2021-35119 coverage.
- Verify remediation through vendor release notes or firmware inventory evidence.
- Document exceptions where OEM firmware status is unavailable.
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-2021-35119 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
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/UI:N/S:U/C:N/I:N/A:H1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/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/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.