How severe is CVE-2018-11871?

CVE-2018-11871 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11871?

CVE-2018-11871 primarily affects Qualcomm Ipq4019 Firmware. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11871?

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-2018-11871 published?

CVE-2018-11871 was published on 2018-10-29 and last updated on 2026-06-17.

CVE-2018-11871

CVE-2018-11871 is a high-severity vulnerability in Qualcomm Ipq4019 Firmware with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Qualcomm Ipq4019 Firmware
Published: 2018-10-29
Last modified: 2026-06-17

Description

Buffer overwrite can happen in WLAN function while processing set pdev parameter command due to lack of input validation in Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in version IPQ4019, IPQ8064, IPQ8074, MDM9206, MDM9607, MDM9635M, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6564, QCA6574, QCA6574AU, QCA6584, QCA6584AU, QCA9377, QCA9378, QCA9379, QCA9531, QCA9558, QCA9563, QCA9880, QCA9886, QCA9980, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 600, SD 625, SD 650/52, SD 820, SD 820A, SD 835, SD 845, SD 850, SDA660, SDM630, SDM632, SDM636, SDM660, SDM710, SDX20, Snapdragon_High_Med_2016.

Frequently asked questions

What is CVE-2018-11871?: Buffer overwrite can happen in WLAN function while processing set pdev parameter command due to lack of input validation in Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in version IPQ4019, IPQ8064, IPQ8074, MDM9206, MDM9607, MDM9635M, MDM9640, MDM9650, MSM8996AU, QCA6174A, QCA6564, QCA6574, QCA6574AU, QCA6584, QCA6584AU, QCA9377, QCA9378, QCA9379, QCA9531, QCA9558, QCA9563, QCA9880, QCA9886, QCA9980, SD 210/SD 212/SD 205, SD 425, SD 427, SD 430, SD 435, SD 450, SD 600, SD 625, SD 650/52, SD 820, SD 820A, SD 835, SD 845, SD 850, SDA660, SDM630, SDM632, SDM636, SDM660, SDM710, SDX20, Snapdragon_High_Med_2016.
How severe is CVE-2018-11871?: CVE-2018-11871 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11871?: CVE-2018-11871 primarily affects Qualcomm Ipq4019 Firmware. In total, 49 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11871?: 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-2018-11871 published?: CVE-2018-11871 was published on 2018-10-29 and last updated on 2026-06-17.

References

Affected products (49)

cpe:2.3:o:qualcomm:ipq4019_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8064_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8074_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9206_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9607_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9635m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9640_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:mdm9650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8996au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6564_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6584_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6584au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9377_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9378_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9379_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9531_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9558_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9563_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9880_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_210_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_212_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_205_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_425_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_427_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_430_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_435_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_450_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_600_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_625_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_652_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_820_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_820a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_835_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_845_firmware:-:*:*:*:*:*:*:*

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