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CVE-2022-50306

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential out of bound read in ext4_fc_replay_scan() For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space.

Published Sep 15, 2025CWE-125EPSS 0.16%

Overview

CVE-2022-50306 is a high-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix potential out of bound read in ext4_fc_replay_scan()

For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain

space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read

when mounting corrupt file system image.

ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this

three tags will read data during scan, tag length couldn't less than data length

which will read.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/1b45cc5c7b920fd8bf72e5a888ec7abeadf41e09Refgit.kernel.org/stable/c/6969367c1500c15eddc38fda12f6d15518ad6d03Refgit.kernel.org/stable/c/f234294812c9b68d603650d28743eafb718e7ad5

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50306?

CVE-2022-50306 is a high-severity vulnerability. It was published on September 15, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2022-50306?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-50306?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-50306?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50306 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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