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Vulnerabilities

Vulnerability · 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 · catalog updated Oct 26, 2026 · eap.c in pppd in

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2020-8597 is not in CISA KEV. FIRST estimates a 19.93% chance of exploitation in the next 30 days. Check whether you run eap.c in pppd in.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (eap.c in pppd in).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
19.93%
Remediation
Advisory link
Affected products
Debian:12 lwip · Debian:12 ppp · Debian:13 lwip · Debian:13 ppp · Debian:14 lwip · Debian:14 ppp

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 lwip0 → 2.1.2+dfsg1-5
  • Debian:12 ppp0 → 2.4.8-1+1
  • Debian:13 lwip0 → 2.1.2+dfsg1-5
  • Debian:13 ppp0 → 2.4.8-1+1
  • Debian:14 lwip0 → 2.1.2+dfsg1-5
  • Debian:14 ppp0 → 2.4.8-1+1

How to fix CVE-2020-8597

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-8597 is not in CISA KEV. FIRST estimates a 19.93% chance of exploitation in the next 30 days. Check whether you run eap.c in pppd in.

Which versions are affected?

Compare what you have installed with 0 → 2.1.2+dfsg1-5, 0 → 2.4.8-1+1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 19.93%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 3, 2020 · OpenSSF OSV / OSV Scanner

    Detected

    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.

  2. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    lwip fixed in 2.1.2+dfsg1-5; lwip fixed in 2.1.2+dfsg1-5; lwip fixed in 2.1.2+dfsg1-5; ppp fixed in 2.4.8-1+1

  3. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    lwip fixed in 2.1.2+dfsg1-5

  4. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    ppp fixed in 2.4.8-1+1

  5. Oct 26, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    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

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • AlienVault OTXNov 1, 2026
  • CVE.orgOct 26, 2026
  • OpenSSF OSV / OSV ScannerOct 26, 2026