How severe is CVE-2020-11277?

CVE-2020-11277 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11277?

CVE-2020-11277 primarily affects Qualcomm Pm3003a Firmware. In total, 161 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-11277?

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-2020-11277 published?

CVE-2020-11277 was published on 2021-02-22 and last updated on 2026-06-17.

CVE-2020-11277

CVE-2020-11277 is a high-severity vulnerability in Qualcomm Pm3003a Firmware with a CVSS 3.x base score of 7.4. 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-362.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 6.9
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Qualcomm Pm3003a Firmware
Published: 2021-02-22
Last modified: 2026-06-17

Description

Possible race condition during async fastrpc session after sending RPC message due to the fastrpc ctx gets free during async session in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile

Frequently asked questions

What is CVE-2020-11277?: Possible race condition during async fastrpc session after sending RPC message due to the fastrpc ctx gets free during async session in Snapdragon Compute, Snapdragon Industrial IOT, Snapdragon Mobile
How severe is CVE-2020-11277?: CVE-2020-11277 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11277?: CVE-2020-11277 primarily affects Qualcomm Pm3003a Firmware. In total, 161 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11277?: 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-2020-11277 published?: CVE-2020-11277 was published on 2021-02-22 and last updated on 2026-06-17.

References

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

Affected products (161)

cpe:2.3:o:qualcomm:pm3003a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm4250_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm6125_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm6150a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm6150l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm6350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm7150a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm7150l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm7250_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm7250b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm7350c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8008_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8009_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8150a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8150b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8150c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8150l_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8250_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8350b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8350bh_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8350bhs_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pm8350c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmi632_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmk7350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmk8002_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmk8003_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmk8350_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmr525_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmr735a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmr735b_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:pmx55_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat3514_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat3516_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat3518_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat3519_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat3555_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat5515_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat5516_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qat5522_firmware:-:*:*:*:*:*:*:*

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