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CVE-2026-46332: greybus: gb-beagleplay: bound bootloader receive buffering

Analyzed
AliasesUBUNTU-CVE-2026-46332DEBIAN-CVE-2026-46332
Published 09-06-2026Last modified 05-08-2026

Vulnerability summary

CVE-2026-46332 is a high (CVSS 8.0) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.19%
0%100%
Low · -0.13 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 7
OPENSUSE-SU-2026:11014-1USN-8488-1USN-8488-2USN-8489-1USN-8507-1USN-8569-1

Timeline

  1. 09-06-2026
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. The helper can keep leftover bytes between callbacks and may receive multiple packets in one callback, so a single count value is not constrained by one packet length. Check that the incoming chunk fits in the remaining receive buffer space before memcpy(). If it does not, drop the staged data and consume the bytes instead of overflowing rx_buffer.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

Decrease -0.13 pp

From 0.33% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb, < 663c2728a6d0f781044431111b53a27f71027e48 | ≥ 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb, < fb91d4e49fcbea0b5091394ac5b8f7d4124265c3 | ≥ 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb, < 0339a746ff7cd3f9d10f565e89c99dc93191e58d | ≥ 0cf7befa3ea2e7284d8ba5b8f45a546865b09edb, < 1214bf28965ceaf584fb20d357731264dd2e10e1 | 6.12
  • linux_kernel≥ 6.12, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.12.86-1 | < 7.0.4-1

3 vendors · 114 products

References

14 links
Show all 14 references