Security readout for executives and security teams
This issue affects Zephyr-based devices that use FAT filesystem support with Long File Names enabled. A local, low-complexity attacker with some privileges could trigger a stack buffer overflow through fs_stat, potentially affecting confidentiality, integrity, or availability at a limited level. Exposure is most likely in embedded or IoT products using affected Zephyr versions with FAT_FS Long File Names enabled and code paths that call fs_stat on attacker-influenced filesystem paths. Treat this as a moderate firmware exposure. Prioritize products that accept removable storage or local file input, especially where affected Zephyr builds are still maintained or deployed. Mitigation focus: Inventory products and firmware using Zephyr v1.14.2 or v2.3.0 as cited.; Check whether FAT_FS Long File Names are enabled in affected builds.; Review the Zephyr GitHub advisory for official fixed versions or backports..
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-121: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-13598 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
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:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L23.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
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.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.