Security readout for executives and security teams
CVE-2020-8597 is a critical memory-safety flaw in pppd, the PPP daemon. A vulnerable system running ppp 2.4.2 through 2.4.8 could be exposed to unauthenticated network attack with full confidentiality, integrity, and availability impact, according to the CVSS vector. Exposure is most likely where pppd from ppp 2.4.2 through 2.4.8 is installed and reachable through PPP/EAP-related workflows. Vendor advisories in the bundle cover Debian, Red Hat, Ubuntu, openSUSE, Fedora, Gentoo, Synology, NetApp, and NETGEAR contexts. Treat as urgent for any environment still using vulnerable pppd builds, especially network infrastructure or remote-access paths. The risk is high-impact and unauthenticated, but prioritization should be based on confirmed pppd presence and network exposure. Mitigation focus: Inventory systems and appliances that include pppd or the ppp package.; Upgrade pppd using the relevant vendor security advisory package.; Apply the upstream ppp fix if maintaining a custom build..
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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CWE-120: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-8597 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/paulusmack/ppp/commit/8d7970b8f3db727fe798b65f3377fe6787575426CVE reference · x_refsource_MISC
- [debian-lts-announce] 20200209 [SECURITY] [DLA 2097-1] ppp security updateCVE reference · mailing-list, x_refsource_MLIST
- DSA-4632CVE reference · vendor-advisory, x_refsource_DEBIAN
- RHSA-2020:0631CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0634CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0633CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2020:0630CVE reference · vendor-advisory, x_refsource_REDHAT
- USN-4288-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- VU#782301CVE reference · third-party-advisory, x_refsource_CERT-VN
- FEDORA-2020-571091c70bCVE reference · vendor-advisory, x_refsource_FEDORA
- https://www.synology.com/security/advisory/Synology_SA_20_02CVE reference · x_refsource_CONFIRM
- FEDORA-2020-4304397fe0CVE reference · vendor-advisory, x_refsource_FEDORA
- https://security.netapp.com/advisory/ntap-20200313-0004/CVE reference · x_refsource_CONFIRM
- GLSA-202003-19CVE reference · vendor-advisory, x_refsource_GENTOO
- USN-4288-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- https://kb.netgear.com/000061806/Security-Advisory-for-Unauthenticated-Remote-Buffer-Overflow-Attack-in-PPPD-on-WAC510-PSV-2020-0136CVE reference · x_refsource_CONFIRM
- https://cert-portal.siemens.com/productcert/pdf/ssa-809841.pdfCVE reference · x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-20-224-04CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.