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Review reviewHigh

CVE-2026-53077

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: net/rds: Restrict use of RDS/IB to the initial network namespace Prevent using RDS/IB in network namespaces other than the initial one. The existing RDS/IB code will not work properly in non-initial network namespaces.

CVSS
7.8
EPSS
0.12%
2.18% percentile
CISA KEV
Not listed
Published
2026.06.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.12%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: net/rds: Restrict use of RDS/IB to the initial network namespace Prevent using RDS/IB in network namespaces other than the initial one. The existing RDS/IB code will not work properly in non-initial network namespaces.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < 3e7f14cd5a51533404e1ae4809caab46073fb5c7, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < 3174fc703d081d2ca538b22fba734e3ad5b52322, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < c244b79adffad89a5173cf8bfaa06a6b40bbd09b, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < 07035306bf722f4676a1aee35cbeb3732c76194e, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < fb407343c0c16e94584707b2dfdd350a5f81b000, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < a7494479757d60d2413bfaa087f8431a26eea032, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < b6a54f5e9ce9b97ae641855378d71c5154a085c0, >= d5a8ac28a7ff2f250d1bedbb6008dd2f6f6f1638 < ebf71dd4aff46e8e421d455db3e231ba43d2fa8a, >= 4.3, >= 4.3 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10
Fixed versions
5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available