5.5

CVE-2026-43069: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43069DEBIAN-CVE-2026-43069
Published 05-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43069 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 40
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 05-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_ll: Fix firmware leak on error path Smatch reports: drivers/bluetooth/hci_ll.c:587 download_firmware() warn: 'fw' from request_firmware() not released on lines: 544. In download_firmware(), if request_firmware() succeeds but the returned firmware content is invalid (no data or zero size), the function returns without releasing the firmware, resulting in a resource leak. Fix this by calling release_firmware() before returning when request_firmware() succeeded but the firmware content is invalid.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.05 pp

From 0.11% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 371805522f870986144fcd88727a47858e364a2c, < 95e8601af227b2b4390eecf8db6abdb9f6a91f17 | ≥ 371805522f870986144fcd88727a47858e364a2c, < e6d95488c8c964d1df0d3e1db44c958706311e86 | ≥ 371805522f870986144fcd88727a47858e364a2c, < b2dfbf1b5ff192cefd49574b951a4af9ddd32213 | ≥ 371805522f870986144fcd88727a47858e364a2c, < 28904375d54b436a757641fb0331537778c0de5a | ≥ 371805522f870986144fcd88727a47858e364a2c, < 5213ef54528dd1ac79b846e30d8f72ce092794aa | ≥ 371805522f870986144fcd88727a47858e364a2c, < 9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074b | ≥ 371805522f870986144fcd88727a47858e364a2c, < a7803df606a7d22e896b030f619e1d9d20ae0c6b | ≥ 371805522f870986144fcd88727a47858e364a2c, < 31148a7be723aa9f2e8fbd62424825ab8d577973 | 4.12
  • linux_kernel≥ 4.12, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.168 | ≥ 6.2, < 6.6.131 | ≥ 6.7, < 6.12.80 | ≥ 6.13, < 6.18.21 | ≥ 6.19, < 6.19.11 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4 | 7.0:rc5
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.11-1

3 vendors · 159 products

References

39 links
Show all 39 references