Security readout for executives and security teams
Plain-English summary
CVE-2018-5863 is a buffer overflow in Qualcomm CAF-derived Android/Linux wireless code. A userspace component can provide an overly large WPA RSN information element length, causing overflow in WLAN handling. Public data does not provide CVSS, confirmed exploitation, or a detailed impact statement.
Executive priority
Prioritize as a legacy mobile platform hygiene issue unless affected CAF-derived devices are still in sensitive environments. Lack of severity and exploit evidence prevents confident emergency classification.
Technical view
The issue is in wlan_hdd_cfg80211_set_ie(), where a too-large WPA RSN IE length from userspace can overflow a buffer. The listed affected scope is Android for MSM, Firefox OS for MSM, and QRD Android releases from CAF using the Linux kernel. The bundle does not name exploit prerequisites, patch identifiers, or CWE mapping.
Likely exposure
Exposure is most likely on legacy Qualcomm CAF-based Android or MSM reference-derived devices using affected WLAN kernel code. Standard non-CAF Android builds are not proven affected by the provided sources.
Exploitation context
The source bundle does not show CISA KEV listing, public exploitation, exploit maturity, or weaponized details. Treat active exploitation as unconfirmed. The described trigger requires userspace interaction with WLAN configuration handling.
Researcher notes
Key gaps are missing CVSS, patch identifiers, exploit prerequisites, and concrete impact beyond buffer overflow. Validation should focus on CAF lineage, WLAN driver provenance, and OEM bulletin mapping rather than generic Android assumptions.
Mitigation direction
- Check Qualcomm, CAF, and OEM June 2018 security guidance for CVE-2018-5863 coverage.
- Apply OEM firmware or security updates that explicitly include this CVE.
- Identify and retire unsupported CAF-derived Android or MSM reference devices.
- Limit sensitive use of devices that cannot receive vendor-confirmed fixes.
Validation and detection
- Inventory Android for MSM, Firefox OS for MSM, and QRD Android-derived devices.
- Confirm whether each device uses CAF Linux kernel WLAN code.
- Review OEM firmware notes for explicit CVE-2018-5863 remediation.
- Document devices lacking vendor confirmation as unresolved exposure.
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-2018-5863 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.codeaurora.org/security-bulletin/2018/06/04/june-2018-code-aurora-security-bulletinCVE reference · x_refsource_MISC
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.