5.5

CVE-2026-46038: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-46038DEBIAN-CVE-2026-46038
Published 27-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-46038 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.13% chance of exploitation in the next 30 days, higher than 2.2% 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
0.13%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 39
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: ns: Free the node during ctrl_cmd_bye() A node sends the BYE packet when it is about to go down. So the nameserver should advertise the removal of the node to all remote and local observers and free the node finally. But currently, the nameserver doesn't free the node memory even after processing the BYE packet. This causes the node memory to leak. Hence, remove the node from Xarray list and free the node memory during both success and failure case of ctrl_cmd_bye().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.13%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

+0.01 pp

From 0.12% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.13%

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

Ubuntu147 products
  • linux< 5.15.0-198.208 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1117.124 | < 6.8.0-1061.64 | All 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≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 6c9cca46acb6f22e63f015ea7b2ed6032d2badf5 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < a5a454f3364877b22f0e5a165df8b3702ff96ae7 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 25d580a46b079a7963ff024a5195e547baf12b64 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < ff78ed177a66763085e3214d6fbe13ca8f0b3f11 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 65932f5102bb5377db36c8a4f0c28179a1967a9a | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 154fc7fe3f62c46891c3c4302f4b5b5391c932e6 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 076e4b162d6caba12c229e7f262df5b6881162b0 | ≥ 0c2204a4ad710d95d348ea006f14ba926e842ffd, < 68efba36446a7774ea5b971257ade049272a07ac | 5.7
  • linux_kernel≥ 5.7, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 150 products

References

40 links
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