How severe is CVE-2021-1899?

CVE-2021-1899 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-1899 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-1899?

CVE-2021-1899 primarily affects Qualcomm Apq8009w Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-1899?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-1899 published?

CVE-2021-1899 was published on 2021-07-13 and last updated on 2026-06-17.

CVE-2021-1899

CVE-2021-1899 is a medium-severity vulnerability in Qualcomm Apq8009w Firmware with a CVSS 3.x base score of 4.6. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Qualcomm Apq8009w Firmware
Published: 2021-07-13
Last modified: 2026-06-17

Description

Possible buffer over read due to lack of length check while flashing meta images in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables

Frequently asked questions

What is CVE-2021-1899?: Possible buffer over read due to lack of length check while flashing meta images in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables
How severe is CVE-2021-1899?: CVE-2021-1899 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-1899 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-1899?: CVE-2021-1899 primarily affects Qualcomm Apq8009w Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-1899?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-1899 published?: CVE-2021-1899 was published on 2021-07-13 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin

Affected products (41)

cpe:2.3:o:qualcomm:apq8009w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:aqt1000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:msm8909w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca4020_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6174a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6420_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6430_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca9379_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qualcomm215_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd_675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd205_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd210_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd678_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd720g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd730_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sd855_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sda429w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdm429w_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdx50m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdx55_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdx55m_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sm6250_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9326_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9341_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9370_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9375_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcd9380_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3610_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3615_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3620_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3660b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3680_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3680b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3950_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3980_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3988_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3991_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wcn3998_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:wsa8810_firmware:-:*:*:*:*:*:*:*

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CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
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