CVE-2020-8597
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.
- Published
- Feb 3, 2020
- Updated
- Dec 3, 2025
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 97.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
4University assignment documenting CVE-2020-8597, a stack buffer overflow in pppd's EAP parser, with a remote code execution exploit demonstration using a pppoe-server and client setup.
Demonstration of CVE-2020-8597: a buffer overflow in pppd's EAP handler, with exploit analysis, stack canary bypass discussion, and memory map debugging for educational security research.
CVE-2020-8597 pppd buffer overflow poc
Responsible use
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