Security readout for executives and security teams
Plain-English summary
This Qualcomm Snapdragon issue can let a malformed RRC connection reconfiguration message trigger a null pointer dereference, likely causing affected devices or components to crash or become unavailable. The public data points to availability risk, not data theft or privilege escalation.
Executive priority
Treat this as a high-priority availability risk for affected Snapdragon-based fleets, especially operational, automotive, IoT, and mobile environments. Urgency depends on whether your deployed devices contain listed components and whether OEM firmware updates are available.
Technical view
CVE-2021-35076 is an improper validation flaw in Qualcomm Snapdragon Auto, Compute, Connectivity, Industrial IoT, and Mobile products. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating unauthenticated network-reachable denial-of-service potential.
Likely exposure
Exposure is most likely in devices using the listed Qualcomm Snapdragon chipsets or components, including mobile, automotive, IoT, compute, and connectivity products. Confirm exposure through OEM firmware bills of materials, chipset identifiers, or vendor security bulletins.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public evidence supports a denial-of-service concern from malformed RRC connection reconfiguration handling, but not confirmed real-world attacks.
Researcher notes
Evidence is limited to CVE metadata and Qualcomm's bulletin reference. No CWE, exploit details, or specific fixed firmware versions are provided in the bundle. Avoid assuming exploit maturity; focus validation on affected hardware mapping and vendor patch status.
Mitigation direction
- Review Qualcomm's May 2022 bulletin and the relevant OEM advisory.
- Apply OEM firmware or security updates that include the Qualcomm fix.
- Inventory products using the listed Snapdragon chipsets or components.
- Prioritize systems where device availability is operationally important.
- Track vendor guidance if fixed firmware details are not published.
Validation and detection
- Match device chipsets and components against the affected Qualcomm list.
- Verify OEM firmware levels against Qualcomm and device-vendor advisories.
- Check mobile, automotive, IoT, and compute asset inventories for affected Snapdragon platforms.
- Document compensating controls where firmware updates are unavailable.
- Monitor for new vendor guidance or exploitation 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-2021-35076 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/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/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.