Improper Restriction of Operations within the Bounds of a Memory Buffer in Portwell Engineering Toolkits
Priority MEDIUM 41CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
An improper restriction of operations within the bounds of a memory buffer vulnerability in Portwell Engineering Toolkits version 4.8.2 could allow a local authenticated attacker to read and write to arbitrary memory via the Portwell Engineering Toolkits driver. Successful exploitation of this vulnerability could result in escalation of privileges or cause a denial-of-service condition.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00177 7th percentileScored 2026-11-07
Fix Fixed Portwell Engineering Toolkits (Portwell): v5.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Portwell Engineering Toolkits (Portwell) Fixed in v5.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3437
- 2026-10-03 Alias added: GHSA-pf6w-96ch-47hm
References
Sources
- CVE-2026-3437 · CVE Program
- CVE-2026-3437 · NVD
- FIRST EPSS
- GHSA-pf6w-96ch-47hm · GitHub Advisory Database · CC BY 4.0
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