An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.
Priority LOW 33CWE-326Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-326.
Summary
An issue discovered in esptool 4.6.2 allows attackers to view sensitive information via weak cryptographic algorithm.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0048 41st 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
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | esptool (PyPI) | up to 4.6.2 | — | No fix listed | GHSA-3f38-96qm-r3fw |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- esptool (PyPI) Vendor— Affected up to 4.6.2 Fixed in — No fix listed GHSA-3f38-96qm-r3fw
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-46894
- 2026-10-03 Alias added: GHSA-3f38-96qm-r3fw
References
Sources
- CVE-2023-46894 · CVE Program
- CVE-2023-46894 · NVD
- FIRST EPSS
- GHSA-3f38-96qm-r3fw · GitHub Advisory Database · CC BY 4.0
- CVE-2023-46894 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences