Improper Authentication in HLOS.

published 2023-08-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25793

cvss: 7.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 1%
public exploits: 0; none known

Cryptographic issue in HLOS due to improper authentication while performing key velocity checks using more than one key.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-10-24)

Exploit prediction

0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD	3.1	7.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

Qualcomm, Inc. Snapdragon
qualcomm snapdragon

Classification

Weakness

CWE-320 Key Management Errors
CWE-287 Improper Authentication

References

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

Sources

CVE List CVE-2023-21626
NVD CVE-2023-21626

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary