What is CVE-2023-21629?

CVE-2023-21629 is a medium-severity vulnerability in Qualcomm 205, classified under Double Free. CVSS score: 6.8/10. Published 2023-07-04.

How severe is CVE-2023-21629?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Double Free in Qualcomm 205

CVE-2023-21629

Memory Corruption in Modem due to double free while parsing the PKCS15 sim files.

Vulnerability class: Double Free

Published 2023-07-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (7.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-415 — Double Free

References

www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin (Vendor Advisory)

Frequently asked questions

What is CVE-2023-21629?: CVE-2023-21629 is a medium-severity vulnerability in Qualcomm 205, classified under Double Free. CVSS score: 6.8/10. Published 2023-07-04.
How severe is CVE-2023-21629?: Medium severity. CVSS v3 base score is 6.8 out of 10.