CVE-2022-48629

Bluetooth traffic compromise via zero-padded RNG output

Published Mar 5, 2024 · Updated Aug 5, 2026

Insufficient randomness in Linux allows adjacent attackers to decrypt or forge Bluetooth traffic through predictable cryptographic keys. qcom_rng_read stops when PRNG_STATUS_DATA_AVAIL clears, and qcom_rng_generate ignores the partial-read result while zero-padding the remaining output. Exploitation requires a Qualcomm device using qcom-rng as its default generator for Bluetooth pairing secrets; the documented impact is disclosure and forgery, not service interruption.

CVSS severity8.1
High
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Insufficient randomness in Linux allows adjacent attackers to decrypt or forge Bluetooth traffic through predictable cryptographic keys. qcom_rng_read stops when PRNG_STATUS_DATA_AVAIL clears, and qcom_rng_generate ignores the partial-read result while zero-padding the remaining output. Exploitation requires a Qualcomm device using qcom-rng as its default generator for Bluetooth pairing secrets; the documented impact is disclosure and forgery, not service interruption.

The record

CVE
CVE-2022-48629
Published
Mar 5, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.19
  2. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <0f9b7b8df17525e464294c916acc8194ce38446b
  3. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <184f7bd08ce56f003530fc19f160d54e75bf5c9d
  4. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d
  5. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <a680b1832ced3b5fa7c93484248fd221ea0d614b
  6. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d
  7. Affected versionversion=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.19; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <0f9b7b8df17525e464294c916acc8194ce38446b; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <184f7bd08ce56f003530fc19f160d54e75bf5c9d; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <485995cbc98a4f77cfd4f8ed4dd7ff8ab262964d; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <a680b1832ced3b5fa7c93484248fd221ea0d614b; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <a8e32bbb96c25b7ab29b1894dcd45e0b3b08fd9d; version=ceec5f5b59882b871a722ca4d49b767a09a4bde9 <ab9337c7cb6f875b6286440b1adfbeeef2b2b2bd

Published CVSS scores

8.1Linux kernel security teamCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo