How severe is CVE-2020-11172?

CVE-2020-11172 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11172 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11172?

CVE-2020-11172 primarily affects Qualcomm Ipq4019 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-11172?

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

When was CVE-2020-11172 published?

CVE-2020-11172 was published on 2020-11-02 and last updated on 2026-06-17.

CVE-2020-11172

CVE-2020-11172 is a critical-severity vulnerability in Qualcomm Ipq4019 Firmware with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Qualcomm Ipq4019 Firmware
Published: 2020-11-02
Last modified: 2026-06-17

Description

u'fscanf reads a string from a file and stores its contents on a statically allocated stack memory which leads to stack overflow' in Snapdragon Wired Infrastructure and Networking in IPQ4019, IPQ6018, IPQ8064, IPQ8074, QCA9531, QCA9980

Frequently asked questions

What is CVE-2020-11172?: u'fscanf reads a string from a file and stores its contents on a statically allocated stack memory which leads to stack overflow' in Snapdragon Wired Infrastructure and Networking in IPQ4019, IPQ6018, IPQ8064, IPQ8074, QCA9531, QCA9980
How severe is CVE-2020-11172?: CVE-2020-11172 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11172 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11172?: CVE-2020-11172 primarily affects Qualcomm Ipq4019 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11172?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-11172 published?: CVE-2020-11172 was published on 2020-11-02 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:qualcomm:ipq4019_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq6018_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8064_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:ipq8074_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9531_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9980_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Qualcomm Ipq4019 Firmware

CVE-2024-21473 — Critical (CVSS 9.8): Memory corruption while redirecting log file to any file location with any file name.
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CVE-2023-33082 — Critical (CVSS 9.8): Memory corruption while sending an Assoc Request having BTM Query or BTM Response containing MBO IE.
CVE-2022-33279 — Critical (CVSS 9.8): Memory corruption due to stack based buffer overflow in WLAN having invalid WNM frame length.
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