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TI-2020-16234 Aliases CVE-2020-26652GHSA-cmv9-rhxg-f4xc

An issue was discovered in function nl80211_send_chandef in rtl8812au v5.6.4.2 allows…

Priority HIGH 72CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

An issue was discovered in function nl80211_send_chandef in rtl8812au v5.6.4.2 allows attackers to cause a denial of service.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00741 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:realtek:rtl8812au_firmware:5.6.4.2:*:*:*:*:*:*:*5.6.4.2VulnerableRealtek
cpe:2.3:h:realtek:rtl8812au:-:*:*:*:*:*:*:*not specified by NVDRunning onRealtek
  • cpe:2.3:o:realtek:rtl8812au_firmware:5.6.4.2:*:*:*:*:*:*:* Versions 5.6.4.2 Vulnerable ·Realtek
  • cpe:2.3:h:realtek:rtl8812au:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Realtek

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26652
  2. 2026-10-03 Alias added: GHSA-cmv9-rhxg-f4xc

References

Sources