What’s Vulnerable › Vulnerabilities

CVE-2026-21367: Buffer Over-read in WLAN Firmware

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-06 · updated 2026-10-26
• Weakness: CWE-126

Description

Transient DOS when processing nonstandard FILS Discovery Frames with out-of-range action sizes during initial scans.

Affected products

• Qualcomm Ar8035 Firmware: all versions
• Qualcomm Cologne Firmware: all versions
• Qualcomm Csr8811 Firmware: all versions
• Qualcomm Fastconnect 6200 Firmware: all versions
• Qualcomm Fastconnect 6700 Firmware: all versions
• Qualcomm Fastconnect 6900 Firmware: all versions
• Qualcomm Fastconnect 7800 Firmware: all versions
• Qualcomm Fwa Gen 3 Ultra Firmware: all versions
• Qualcomm G2 Gen 1 Firmware: all versions
• Qualcomm Immersive Home 214 Platform Firmware: all versions
• Qualcomm Immersive Home 216 Platform Firmware: all versions
• Qualcomm Immersive Home 316 Platform Firmware: all versions
• Qualcomm Immersive Home 318 Platform Firmware: all versions
• Qualcomm Ipq5010 Firmware: all versions
• Qualcomm Ipq5028 Firmware: all versions
• Qualcomm Ipq6000 Firmware: all versions
• Qualcomm Ipq6010 Firmware: all versions
• Qualcomm Ipq6018 Firmware: all versions
• Qualcomm Ipq8076 Firmware: all versions
• Qualcomm Ipq8078 Firmware: all versions
• Qualcomm Ipq9574 Firmware: all versions
• Qualcomm Milos Firmware: all versions
• Qualcomm Netrani Firmware: all versions
• Qualcomm Networking Pro 1200 Platform Firmware: all versions
• Qualcomm Networking Pro 1210 Platform Firmware: all versions
• Qualcomm Networking Pro 1610 Platform Firmware: all versions
• Qualcomm Networking Pro 400 Platform Firmware: all versions
• Qualcomm Networking Pro 600 Platform Firmware: all versions
• Qualcomm Networking Pro 610 Platform Firmware: all versions
• Qualcomm Networking Pro 800 Platform Firmware: all versions

References

• https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2026-bulletin.html

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