CVE-2020-11257
CVE-2020-11257 is a high-severity vulnerability in Qualcomm Ar7420 Firmware with a CVSS 3.x base score of 8.8. 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 8.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Qualcomm Ar7420 Firmware
- Published:
- Last modified:
Description
Memory corruption due to lack of validation of pointer arguments passed to TrustZone BSP in Snapdragon Wired Infrastructure and Networking
Frequently asked questions
- What is CVE-2020-11257?
- Memory corruption due to lack of validation of pointer arguments passed to TrustZone BSP in Snapdragon Wired Infrastructure and Networking
- How severe is CVE-2020-11257?
- CVE-2020-11257 has a CVSS 3.x base score of 8.8, 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-2020-11257 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11257?
- CVE-2020-11257 primarily affects Qualcomm Ar7420 Firmware. In total, 26 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-11257?
- 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-2020-11257 published?
- CVE-2020-11257 was published on 2021-06-09 and last updated on 2026-06-17.
References
Affected products (26)
- cpe:2.3:o:qualcomm:ar7420_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:ar9580_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:csr8811_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:ipq4018_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:ipq4019_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:ipq4028_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:ipq4029_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca10901_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca4024_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca7500_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca7520_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca7550_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca8075_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9880_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9886_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9888_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9889_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9898_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9984_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9992_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qca9994_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qcn3018_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qfe1922_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:qfe1952_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:wcd9340_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*
More vulnerabilities in Qualcomm Ar7420 Firmware
- CVE-2021-1976 — Critical (CVSS 9.8): A use after free can occur due to improper validation of P2P device address in PD Request frame in Snapdragon Auto,…
- CVE-2021-1972 — Critical (CVSS 9.8): Possible buffer overflow due to improper validation of device types during P2P search in Snapdragon Auto, Snapdragon…
- CVE-2020-11301 — Critical (CVSS 9.1): Improper authentication of un-encrypted plaintext Wi-Fi frames in an encrypted network can lead to information…
- CVE-2021-1924 — Critical (CVSS 9.0): Information disclosure through timing and power side-channels during mod exponentiation for RSA-CRT in Snapdragon Auto,…
- CVE-2020-11259 — High (CVSS 8.8): Memory corruption due to lack of validation of pointer arguments passed to Trustzone BSP in Snapdragon Wired…
- CVE-2020-11258 — High (CVSS 8.8): Memory corruption due to lack of validation of pointer arguments passed to Trustzone BSP in Snapdragon Wired…
All CVEs affecting Qualcomm Ar7420 Firmware →
Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities
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- CVE-2026-76008 — Critical (CVSS 10.0): A flaw has been found in Comfast CF-N1-S 2.6.0.1. This affects the function get_para_from_uri of the file…
- CVE-2026-75784 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-WLC100 1v2.07b01. Affected by this issue is the function FUN_0040da4c of…
- CVE-2026-74843 — Critical (CVSS 10.0): A vulnerability was determined in Wavlink WN531P3 and WN535M1 V250922. Affected by this vulnerability is the function…
- CVE-2026-16367 — Critical (CVSS 10.0): Sandbox escape due to invalid pointer in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…