CVE-2020-8597

CRITICALNVD 9.89.8—Trending — 4 sources updated this week

9.8

eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eap_request and eap_response functions.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 98.5%
KEV: Not listed

Published

February 3, 2020

Last Modified

December 3, 2025

References (44)

Patch Availability(6)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	ppp-udeb (2.4.7-1+2ubuntu1.16.04.2) @ xenial	2026-05-27	ubuntu
ubuntu	ppp-dev (2.4.5-5.1ubuntu2.3+esm1) @ trusty	2026-05-27	ubuntu
redhat	ppp-0:2.4.5-34.el7_7	2020-02-27	redhat
redhat	ppp-0:2.4.7-26.el8_1	2020-02-27	redhat
redhat	ppp-0:2.4.7-26.el8_0	2020-02-27	redhat
redhat	ppp-0:2.4.5-11.el6_10	2020-02-27	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-120Buffer Copy without Checking Size (Classic Buffer Overflow)

All Vendor Advisories

(7)

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 9× in last 7d / 9× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 08:20 UTCEG score recompute
2026-05-27 08:20 UTCVendor advisory
2026-05-27 08:20 UTCGHSA enrichment
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

Frequently asked(5)

What is CVE-2020-8597?

CVE-2020-8597 is a critical vulnerability published on February 3, 2020. eap.c in pppd in ppp 2.4.2 through 2.4.8 has an rhostname buffer overflow in the eaprequest and eapresponse functions.

When was CVE-2020-8597 disclosed?

CVE-2020-8597 was first published in the National Vulnerability Database on February 3, 2020, with the most recent update on December 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-8597 actively exploited?

CVE-2020-8597 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-8597?

CVE-2020-8597 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-8597?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8597, 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-2020-8597

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Is Your Infrastructure Affected by CVE-2020-8597?

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CVE-2020-8597

Published

Last Modified

References (44)

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-8597?

Same vendor

Same CWE

CVE-2020-8597

📅 Published

🔄 Last Modified

🔗 References (44)

Patch Availability(6)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-8597?

🔗 Related CVEs(same vendor + same CWE)

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Published

Last Modified

References (44)

Frequently asked(5)

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