Security readout for executives and security teams
Plain-English summary
This is a Qualcomm Snapdragon-related memory corruption vulnerability triggered by malformed firmware-supplied message payloads. Successful exploitation could affect confidentiality, integrity, and availability on impacted devices. The public sources do not show active exploitation or provide detailed exploit mechanics.
Executive priority
Treat this as a high-priority firmware supply-chain exposure for affected Qualcomm-based devices. Urgency is highest where impacted devices are widely deployed, unsupported, or difficult to patch.
Technical view
CVE-2023-43516 is a CWE-823 out-of-range pointer offset issue in Qualcomm Video. CVSS 3.1 is 7.8, with local attack vector, low privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in devices using the listed Qualcomm Snapdragon, FastConnect, QCM/QCS, WCD, or WSA components that have not received relevant OEM or Qualcomm security updates.
Exploitation context
The source bundle marks KEV as false, and no cited source confirms exploitation in the wild. CVSS indicates exploitation requires local access with low privileges and no user interaction.
Researcher notes
Public evidence is limited to Qualcomm and CVE records. Sources identify memory corruption from malformed firmware message payloads but do not provide fixed version identifiers, exploit details, proof-of-concept status, or deeper attack-path constraints.
Mitigation direction
- Inventory devices using the listed Qualcomm components or platforms.
- Check Qualcomm and OEM February 2024 security guidance for applicable firmware updates.
- Apply vendor-provided firmware or security updates where available.
- Prioritize managed mobile, embedded, and IoT assets with affected Snapdragon components.
- Limit untrusted local code execution and unmanaged app installation where feasible.
- Track OEM support status for devices that may not receive updates.
Validation and detection
- Confirm whether asset hardware matches the affected Qualcomm product list.
- Compare device firmware and security patch levels against vendor guidance.
- Verify update availability through OEM, carrier, or device management channels.
- Document devices that are unsupported, delayed, or awaiting vendor fixes.
- Monitor CISA KEV and Qualcomm bulletins for exploitation or guidance changes.
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.
CWE-823: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-43516 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
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.
Use of Out-of-range Pointer Offset
Use of Out-of-range Pointer Offset represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.