CVE-2022-49571

MEDIUMNVD 4.74.7—Trending — 4 sources updated this week

4.7

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

tcp: Fix data-races around sysctl_tcp_max_reordering.

While reading sysctl_tcp_max_reordering, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

CVSS v3: 4.7
EG Score: 4.7(medium)
EPSS: 14.4%
KEV: Not listed

Published

February 26, 2025

Last Modified

October 1, 2025

References (6)

416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/064852663308c801861bd54789d81421fa4c2928
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/46deb91ac8a790286ad6d24cf92e7ab0ab2582bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/50a1d3d097503a90cf84ebe120afcde37e9c33b3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e38cee24f19d19280c68f1ac8bf6790d607f60a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a11e5b3e7a59fde1a90b0eaeaa82320495cf8cae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ce3731c61589ed73364a5b55ce34131762ef9b60

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)

Data Freshness Timeline

(refreshed 15× in last 7d / 15× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:11 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-30 10:48 UTCEG score recompute
2026-05-30 10:48 UTCGHSA enrichment
2026-05-30 03:48 UTCOSV refresh
2026-05-29 13:43 UTCepss_batch

Frequently asked(5)

What is CVE-2022-49571?

CVE-2022-49571 is a medium vulnerability published on February 26, 2025. In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctltcpmax_reordering. While reading sysctltcpmax_reordering, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

When was CVE-2022-49571 disclosed?

CVE-2022-49571 was first published in the National Vulnerability Database on February 26, 2025, with the most recent update on October 1, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-49571 actively exploited?

CVE-2022-49571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 14.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-49571?

CVE-2022-49571 has a CVSS v3 base score of 4.7 (NVD).

How do I remediate CVE-2022-49571?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-49571, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2022-49571

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-49571?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)