5.5

CVE-2026-46127: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumUndergoing analysis
AliasesUBUNTU-CVE-2026-46127DEBIAN-CVE-2026-46127
Published 28-05-2026Last modified 14-06-2026
Open JSON

Vulnerability summary

CVE-2026-46127 is a medium (CVSS 5.5) NULL Pointer Dereference 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 47 · Related 47
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23221-1SUSE-SU-2026:23231-1

Timeline

  1. 28-05-2026
    PublishedVulnerability first disclosed.
  2. 14-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/ocrdma: Don't NULL deref uctx on errors in ocrdma_copy_pd_uresp() Sashiko points out that pd->uctx isn't initialized until late in the function so all these error flow references are NULL and will crash. Use the uctx that isn't NULL.

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

Affected systems

Ubuntu166 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136 | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64 | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < b610f33c5523fe26f6dd897667fff9c7a1de5905 | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < 443c991fbc954cc9363e963c09f404b9f281f3a2 | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < 27b6eb1f27fda9bdd5cae028e396758cdf525845 | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < e01a957561f663d3b68d2fd233a4502e3367efcd | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < 75fc130664ae324e7b2f9ad3630e0f175e9ca6c8 | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < 8832626a483439e207734e027afff322ccdf726e | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < ec44c00a4fe1327efa35083f98b39c01cb535a51 | ≥ fe2caefcdf5869f308c102e3d64d40683bfad711, < 34fbf48cf3b410d2a6e8c586fa952a36331ca5ba | 3.5
  • linux_kernel≥ 3.5, < 5.10.258 | ≥ 5.11, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.88 | ≥ 6.13, < 6.18.30 | ≥ 6.19, < 7.0.7 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 6.1.176-1 | < 6.12.88-1 | < 7.0.7-1

3 vendors · 169 products

References

51 links
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