Integer Overflow to Buffer Overflow in HLOS

published 2023-12-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37211

cvss: 8.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits: 0; none known

Memory corruption in HLOS while invoking IOCTL calls from user-space.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 17 mo ago (2025-05-29)

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.4	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Qualcomm, Inc. Snapdragon

Classification

Weakness

CWE-680 Integer Overflow to Buffer Overflow
CWE-190 Integer Overflow or Wraparound

References

qualcomm.com /company/product-security/bulletins/december-2023-bulletin
vendor-advisory

Sources

CVE List CVE-2023-33022
NVD CVE-2023-33022

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Summary