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Vulnerability record · CVE-2023-28577 · published 8 August 2023

CVE-2023-28577: Qualcomm fastconnect 6800 firmware use after free vulnerability

Qualcomm · Fastconnect 6800 Firmware

In the function call related to CAM_REQ_MGR_RELEASE_BUF there is no check if the buffer is being used. So when a function called cam_mem_get_cpu_buf to get the kernel va to use, another thread can call CAM_REQ_MGR_RELEASE_BUF to unmap the kernel va which cause UAF of the kernel address.

7.8 CVSS 3.1 High EPSS 0.12% · top 98.2% CWE-416 · Use after free
7.8CVSS 3.1 base score
0.12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
31Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In the function call related to CAM_REQ_MGR_RELEASE_BUF there is no check if the buffer is being used. So when a function called cam_mem_get_cpu_buf to get the kernel va to use, another thread can call CAM_REQ_MGR_RELEASE_BUF to unmap the kernel va which cause UAF of the kernel address.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

31 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.qualcomm.com/company/product-security/bulletins/august-2023-bulletin PatchVendor Advisory
https://www.qualcomm.com/company/product-security/bulletins/august-2023-bulletin PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-28577), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.