CVE-2026-53077

Description

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 v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0012

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/07035306bf722f4676a1aee35cbeb3732c76194e https://git.kernel.org/stable/c/3174fc703d081d2ca538b22fba734e3ad5b52322 https://git.kernel.org/stable/c/3e7f14cd5a51533404e1ae4809caab46073fb5c7 https://git.kernel.org/stable/c/a7494479757d60d2413bfaa087f8431a26eea032 https://git.kernel.org/stable/c/b6a54f5e9ce9b97ae641855378d71c5154a085c0 https://git.kernel.org/stable/c/c244b79adffad89a5173cf8bfaa06a6b40bbd09b https://git.kernel.org/stable/c/ebf71dd4aff46e8e421d455db3e231ba43d2fa8a https://git.kernel.org/stable/c/fb407343c0c16e94584707b2dfdd350a5f81b000

Frequently Asked Questions

What is CVE-2026-53077? +

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. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-53077? +

CVE-2026-53077 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0012, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-53077? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.