CVE-2021-38161

HIGHNVD 8.18.1—

8.1

Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

CVSS v3: 8.1
EG Score: 8.1(medium)
EPSS: 79.0%
KEV: Not listed

Published

November 3, 2021

Last Modified

November 21, 2024

References (4)

security@apachehttps://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164
security@apachehttps://www.debian.org/security/2022/dsa-5153
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread/k01797hyncx53659wr3o72s5cvkc3164
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2022/dsa-5153

Weakness Classification(1)

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

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 16× in last 7d / 20× 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.

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Frequently asked(5)

What is CVE-2021-38161?

CVE-2021-38161 is a high vulnerability published on November 3, 2021. Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

When was CVE-2021-38161 disclosed?

CVE-2021-38161 was first published in the National Vulnerability Database on November 3, 2021, 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-2021-38161 actively exploited?

CVE-2021-38161 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-38161?

CVE-2021-38161 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2021-38161?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-38161, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-38161

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Is Your Infrastructure Affected by CVE-2021-38161?

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Frequently asked(5)

What is CVE-2021-38161?

When was CVE-2021-38161 disclosed?

Is CVE-2021-38161 actively exploited?

What is the CVSS score of CVE-2021-38161?

CVE-2021-38161 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2021-38161?

CVE-2021-38161

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-38161?

CVE-2021-38161

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-38161?

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References (4)

Frequently asked(5)

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Frequently asked(5)

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