5.5

CVE-2026-43149: linux

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43149DEBIAN-CVE-2026-43149
Published 06-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43149 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% 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 · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 31
SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23241-1SUSE-SU-2026:23244-1SUSE-SU-2026:3130-1SUSE-SU-2026:3166-1

Timeline

  1. 06-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.

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

+0.03 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
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

No weakness data has been published for this record.

Affected systems

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-134.134
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1060.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < 6496fb830cbb741d831225cc4e7e5601c6e42970 | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4 | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < 011ae5dd84dc9f05eb9b8e1adff44252ac776e7b | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < 0f85a9655445e67bb0238cfc983d7c383b54938e | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < 84b932bc9899d43e5829e6cf088b72d73a922b2b | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < d8a522085d09b30aba1016daf1dddac37c0f0285 | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < d68994e37ac3b285692559776e0279a88a3b5f8d | ≥ c19b6d246a35627c3a69b2fa6bdece212b48214b, < 36bd7d5deef936c4e1e3cd341598140e5c14c1d3 | 4.8
  • linux_kernel≥ 4.8, < 5.10.252 | ≥ 5.11, < 5.15.202 | ≥ 5.16, < 6.1.165 | ≥ 6.2, < 6.6.128 | ≥ 6.7, < 6.12.75 | ≥ 6.13, < 6.18.16 | ≥ 6.19, < 6.19.6
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.6-1

3 vendors · 159 products

References

37 links
Show all 37 references