How severe is CVE-2021-30338?

CVE-2021-30338 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-30338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30338?

CVE-2021-30338 primarily affects Qualcomm Sd850 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-30338?

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-2021-30338 published?

CVE-2021-30338 was published on 2022-06-14 and last updated on 2026-06-17.

CVE-2021-30338

CVE-2021-30338 is a high-severity vulnerability in Qualcomm Sd850 Firmware with a CVSS 3.x base score of 7.1. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 4.9
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Qualcomm Sd850 Firmware
Published: 2022-06-14
Last modified: 2026-06-17

Description

Improper input validation in TrustZone memory transfer interface can lead to information disclosure in Snapdragon Compute

Frequently asked questions

What is CVE-2021-30338?: Improper input validation in TrustZone memory transfer interface can lead to information disclosure in Snapdragon Compute
How severe is CVE-2021-30338?: CVE-2021-30338 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-30338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30338?: CVE-2021-30338 primarily affects Qualcomm Sd850 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-30338?: 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-2021-30338 published?: CVE-2021-30338 was published on 2022-06-14 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/april-2022-bulletin

Affected products (2)

cpe:2.3:o:qualcomm:sd850_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sdxr1_firmware:-:*:*:*:*:*:*:*

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