Improper Input Validation in Bluetooth HOST

published 2023-08-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-25814

cvss: 6.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

Information disclosure in Bluetooth when an GATT packet is received due to improper input validation.

Patch / fix

links 1

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

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-11)

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

Qualcomm, Inc. Snapdragon

Classification

Weakness

CWE-20 Improper Input Validation

References

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

Sources

CVE List CVE-2023-21647
NVD CVE-2023-21647

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