CVE-2020-36516

MEDIUMNVD 5.95.9—

5.9

An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session or terminate that session.

CVSS v3: 5.9
EG Score: 5.9(medium)
EPSS: 12.2%
KEV: Not listed

Published

February 26, 2022

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://dl.acm.org/doi/10.1145/3372297.3417884
cve@mitrehttps://security.netapp.com/advisory/ntap-20220331-0003/
af854a3a-2127-422b-91ae-364da2661108https://dl.acm.org/doi/10.1145/3372297.3417884
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220331-0003/

Patch Availability(8)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-tools-4.4.0-1155-aws (4.4.0-1155.170) @ xenial	2026-05-26	ubuntu
ubuntu	linux-image-4.4.0-1117-aws (4.4.0-1117.123) @ trusty	2026-05-26	ubuntu
ubuntu	linux-tools-4.4.0-239-lowlatency (4.4.0-239.273) @ xenial	2026-05-26	ubuntu
redhat	kernel-0:4.18.0-372.102.1.el8_6	2024-05-02	redhat
redhat	kernel-0:5.14.0-162.6.1.el9_1	2022-11-15	redhat
redhat	kernel-rt-0:5.14.0-162.6.1.rt21.168.el9_1	2022-11-15	redhat
redhat	kernel-rt-0:4.18.0-425.3.1.rt7.213.el8	2022-11-08	redhat
redhat	kernel-0:4.18.0-425.3.1.el8	2022-11-08	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

CWE-327Use of a Broken or Risky Cryptographic Algorithm

All Vendor Advisories

(8)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 17× 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.

2026-06-01 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
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 02:25 UTCEG score recompute
2026-05-26 02:25 UTCVendor advisory
2026-05-26 02:25 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2020-36516?

CVE-2020-36516 is a medium vulnerability published on February 26, 2022. An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session or terminate that session.

When was CVE-2020-36516 disclosed?

CVE-2020-36516 was first published in the National Vulnerability Database on February 26, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-36516 actively exploited?

CVE-2020-36516 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-36516?

CVE-2020-36516 has a CVSS v3 base score of 5.9 (NVD).

How do I remediate CVE-2020-36516?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36516, 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-2020-36516

Published

Last Modified

References (4)

Patch Availability(8)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-36516?

Same vendor

Same CWE

CVE-2020-36516

📅 Published

🔄 Last Modified

🔗 References (4)

Patch Availability(8)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-36516?

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References (4)

Frequently asked(5)

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