How severe is CVE-2023-21642?

CVE-2023-21642 has a CVSS 3.x base score of 8.4, 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 high, and availability high.

Is CVE-2023-21642 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21642?

CVE-2023-21642 primarily affects Qualcomm Qam8295p Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21642?

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-2023-21642 published?

CVE-2023-21642 was published on 2023-05-02 and last updated on 2026-06-17.

CVE-2023-21642

CVE-2023-21642 is a high-severity vulnerability in Qualcomm Qam8295p Firmware with a CVSS 3.x base score of 8.4. 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-284.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Qualcomm Qam8295p Firmware
Published: 2023-05-02
Last modified: 2026-06-17

Description

Memory corruption in HAB Memory management due to broad system privileges via physical address.

Frequently asked questions

What is CVE-2023-21642?: Memory corruption in HAB Memory management due to broad system privileges via physical address.
How severe is CVE-2023-21642?: CVE-2023-21642 has a CVSS 3.x base score of 8.4, 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 high, and availability high.
Is CVE-2023-21642 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21642?: CVE-2023-21642 primarily affects Qualcomm Qam8295p Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21642?: 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-2023-21642 published?: CVE-2023-21642 was published on 2023-05-02 and last updated on 2026-06-17.

References

https://www.qualcomm.com/company/product-security/bulletins/may-2023-bulletin

Affected products (13)

cpe:2.3:o:qualcomm:qam8295p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6574au_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:qca6696_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6145p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6150p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa6155p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8145p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8150p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8155p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8195p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8295p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa8540p_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qualcomm:sa9000p_firmware:-:*:*:*:*:*:*:*

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