5.5

CVE-2026-46092: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2026-46092DEBIAN-CVE-2026-46092CGA-24r3-fjrv-jrf7
Published 27-05-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-46092 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 2.6% 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
0.14%
0%100%
Low · 0.00 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 40
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: wifi: rtw88: check for PCI upstream bridge existence pci_upstream_bridge() returns NULL if the device is on a root bus. If 8821CE is installed in the system with such a PCI topology, the probing routine will crash. This has probably been unnoticed as 8821CE is mostly supplied in laptops where there is a PCI-to-PCI bridge located upstream from the device. However the card might be installed on a system with different configuration. Check if the bridge does exist for the specific workaround to be applied. Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.14%

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)
Chainguard40 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • linux-aws-6.12All versions (No fix recorded)
  • linux-aws-6.18< 6.18.27-r0
  • linux-aws-6.18-boot-installed< 6.18.27-r0
  • linux-aws-6.18-bootc< 6.18.55-r0 | < 6.18.27-r0
Linux2 products
  • linux≥ 617339466fda09916c4b4151fa5e6a9c1fdae353, < 959c13da6c36167ce1016d400a6104d2367f686e | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < 3b89b4c095804c478d50376285e66700cf3c045f | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < cc9b6303e7ea91bc360b42c7edc1fe9ceb2f47fe | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < 6c53d68e3bcfc8faccdd76c3383a9232b05c9ae6 | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < 000134a20bbf89b1152520a2eef71f91fdb83a5b | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < 3bbbb56204f7359ce2139a9341b43b52a186261c | ≥ 24f5e38a13b5ae2b6105cda8bb47c19108e62a9a, < eb101d2abdcccb514ca4fccd3b278dd8267374f6 | f21e8cb927fa9da49490b74ddda3856a828b82d6 | ≥ 5.15.17, < 5.15.210 | ≥ 5.16.3, < 5.17 | 5.17
  • linux_kernel≥ 5.15.17, < 5.16 | ≥ 5.16.3, < 7.1
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

4 vendors · 190 products

References

39 links
Show all 39 references