Security readout for executives and security teams
This is an old remote denial-of-service issue in the rp-pppoe PPPoE client. A malformed TCP option can crash or disrupt affected clients when the Clamp MSS option is involved. Business impact is loss of PPPoE connectivity on legacy Linux systems, not data theft or code execution based on the provided sources. Exposure is most likely on legacy Linux systems using rp-pppoe for PPPoE connectivity, especially where Clamp MSS is enabled. Modern systems are unlikely to be affected unless they retain old packages or embedded distributions based on affected code. Treat this as a legacy availability risk. It should not drive emergency action unless PPPoE-dependent systems remain in production, but those systems should be inventoried and upgraded because disruption could affect connectivity. Mitigation focus: Inventory systems using rp-pppoe or PPPoE client packages.; Check vendor advisories for distribution-specific fixed packages.; Upgrade or replace affected rp-pppoe versions where still present..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2001-0026 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- rppppoe-zero-length-dos(5727)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
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