CVE-2022-40502

CVE-2022-40502 is a high-severity vulnerability in Qualcomm Csr8811 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: High (CVSS 3.x base score 7.5)
• EPSS exploit prediction: 0% (34th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Qualcomm Csr8811 Firmware
• Published: 2023-02-12
• Last modified: 2026-06-17

Description

Transient DOS due to improper input validation in WLAN Host.

Frequently asked questions

What is CVE-2022-40502?

Transient DOS due to improper input validation in WLAN Host.

How severe is CVE-2022-40502?

CVE-2022-40502 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-40502 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40502?

CVE-2022-40502 primarily affects Qualcomm Csr8811 Firmware. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-40502?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-40502 published?

CVE-2022-40502 was published on 2023-02-12 and last updated on 2026-06-17.

References

• https://www.qualcomm.com/company/product-security/bulletins/february-2023-bulletin

Affected products (96)

• cpe:2.3:o:qualcomm:csr8811_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq5010_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq5018_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq5028_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq6000_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq6010_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq6018_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq6028_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8070a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8071a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8072a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8074a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8076_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8076a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8078_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8078a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8173_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq8174_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq9008_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:ipq9574_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca4024_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6554a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6564au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574a_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6595_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6595au_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca6698aq_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca8072_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca8075_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca8081_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca9888_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qca9889_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcn5022_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcn5024_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:qualcomm:qcn5052_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Csr8811 Firmware

• CVE-2024-45569 — Critical (CVSS 9.8): Memory corruption while parsing the ML IE due to invalid frame content.
• CVE-2024-33066 — Critical (CVSS 9.8): Memory corruption while redirecting log file to any file location with any file name.
• CVE-2024-21473 — Critical (CVSS 9.8): Memory corruption while redirecting log file to any file location with any file name.
• CVE-2023-43553 — Critical (CVSS 9.8): Memory corruption while parsing beacon/probe response frame when AP sends more supported links in MLIE.
• CVE-2023-43552 — Critical (CVSS 9.8): Memory corruption while processing MBSSID beacon containing several subelement IE.
• CVE-2023-33083 — Critical (CVSS 9.8): Memory corruption in WLAN Host while processing RRM beacon on the AP.

All CVEs affecting Qualcomm Csr8811 Firmware →

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