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CVE-2022-49325

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: tcp: add accessors to read/set tp->snd_cwnd We had various bugs over the years with code breaking the assumption that tp->snd_c…

Published Feb 26, 2025CWE-617EPSS 0.64%

Overview

CVE-2022-49325 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

tcp: add accessors to read/set tp->snd_cwnd

We had various bugs over the years with code

breaking the assumption that tp->snd_cwnd is greater

than zero.

Lately, syzbot reported the WARN_ON_ONCE(!tp->prior_cwnd) added

in commit 8b8a321ff72c ("tcp: fix zero cwnd in tcp_cwnd_reduction")

can trigger, and without a repro we would have to spend

considerable time finding the bug.

Instead of complaining too late, we want to catch where

and when tp->snd_cwnd is set to an illegal value.

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/3308676ec525901bf1656014003c443a60730a04Refgit.kernel.org/stable/c/40570375356c874b1578e05c1dcc3ff7c1322dbeRefgit.kernel.org/stable/c/41e191fe72282e193a7744e2fc1786b23156c9e4Refgit.kernel.org/stable/c/5aba0ad44fb4a7fb78c5076c313456de199a3c29

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49325?

CVE-2022-49325 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2022-49325?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49325?

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-2022-49325?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49325 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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