Buffer overflow vulnerability in function jsvGetStringChars in Espruino before…
Priority MEDIUM 47CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.
Summary
Buffer overflow vulnerability in function jsvGetStringChars in Espruino before RELEASE_2V09, allows remote attackers to execute arbitrary code.
Why it matters now
EPSS 0.02828 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-22884
- 2026-10-03 Alias added: GHSA-5674-6v46-8q99
References
More Espruino vulnerabilities
- TI-2020-13677 An issue found in Espruino Espruino 6ea4c0a allows an attacker to execute arbitrrary code… CVSS 3.1CRITICAL 9.8
- TI-2024-16632 Espruino 2v20 (commit fcc9ba4) was discovered to contain a Stack Overflow via the… CVSS 3.1HIGH 7.5
- TI-2024-16633 Espruino 2v20 (commit fcc9ba4) was discovered to contain an Out-of-bounds Read via… CVSS 3.1HIGH 7.5
- TI-2020-14502 Buffer Overflow vulnerability found in Espruino 2v05.41 allows an attacker to cause a… CVSS 3.1HIGH 7.5
- TI-2018-08298 Espruino before 1.99 allows attackers to cause a denial of service (application crash)… CVSS 3.0HIGH 7.8
- TI-2022-08809 Espruino 2v11.251 was discovered to contain a stack buffer overflow via src/jsvar.c in jsvNewFromString. CVSS 3.1HIGH 7.8
Sources
- CVE-2020-22884 · CVE Program
- CVE-2020-22884 · NVD
- FIRST EPSS
- GHSA-5674-6v46-8q99 · GitHub Advisory Database · CC BY 4.0
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