Security readout for executives and security teams
CVE-2020-29129 is a buffer over-read in libslirp through 4.3.1. In plain terms, the networking code may read beyond the valid packet data when handling certain NCSI header data. The bundle does not provide a severity score or active exploitation evidence. Likely exposure is systems or products embedding libslirp through 4.3.1, including QEMU environments covered by the cited Fedora and Debian advisories. The bundle does not provide complete affected-product CPEs, so inventory confirmation is required. Treat this as a targeted dependency remediation item, not an emergency from the provided evidence. Prioritize virtualization and emulation infrastructure because libslirp is used in network emulation paths and downstream QEMU packages received security updates. Mitigation focus: Identify systems using libslirp through 4.3.1.; Apply vendor or distribution updates for libslirp or QEMU.; Prioritize hosts running virtualized or emulated networking paths..
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-2020-29129 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
- https://lists.freedesktop.org/archives/slirp/2020-November/000115.htmlCVE reference · x_refsource_MISC
- FEDORA-2020-77f93f41beCVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-331e1318ddCVE reference · vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
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.