Security readout for executives and security teams
Plain-English summary
CVE-2020-26652 is a denial-of-service issue reported in rtl8812au wireless driver version 5.6.4.2. The public record says attackers can trigger a service-impacting failure, but it does not provide severity, scoring, exploit maturity, or a confirmed fix.
Executive priority
Treat this as a targeted availability risk with uncertain severity. Prioritize inventory first, then remediate affected systems that support important operations or rely on wireless connectivity, while monitoring upstream guidance for a confirmed fix.
Technical view
The issue is described in nl80211_send_chandef in rtl8812au v5.6.4.2 and mapped to CWE-400, indicating uncontrolled resource consumption. Public CVE metadata lists denial of service only, with no CVSS vector and no structured affected CPE data.
Likely exposure
Exposure is most likely on systems using the rtl8812au driver, specifically version 5.6.4.2. The source bundle does not identify operating systems, distributions, packages, or downstream vendors, so asset owners must validate local driver source and version directly.
Exploitation context
The CVE is not listed in KEV, and the provided sources do not claim active exploitation. The public description confirms denial of service potential but does not disclose reliable exploit prerequisites, attack range, privileges required, or operational impact details.
Researcher notes
Evidence is sparse. The CVE record names a vulnerable function and version, but structured affected product data is absent. Do not infer broader rtl8812au versions, active exploitation, or a patch from the provided sources alone.
Mitigation direction
- Check upstream rtl8812au guidance and releases for a fixed or recommended version.
- Inventory systems for rtl8812au v5.6.4.2 before prioritizing remediation.
- Avoid using the affected driver on critical systems where feasible.
- Remove or disable unused affected wireless adapters.
- Monitor the referenced upstream issue for maintainer updates.
Validation and detection
- Confirm whether rtl8812au is installed or loaded on relevant endpoints.
- Record the exact rtl8812au version in use.
- Compare findings against the upstream issue and CVE record.
- Review logs for unexplained wireless driver crashes or availability loss.
- Track remediation status separately because no CVSS is available.
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-400: 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-2020-26652 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://github.com/aircrack-ng/rtl8812au/issues/730CVE reference
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.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.