Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.
Priority MEDIUM 51CWE-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
Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01258 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
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 |
- — 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-2023-45199
- 2026-10-03 Alias added: GHSA-9xgp-crg4-hgxq
References
More OP-TEE Mbed Tls vulnerabilities
- TI-2022-22925 An issue was discovered in Mbed TLS before 2.28.2 and 3.x before 3.3.0. CVSS 3.1CRITICAL 9.8
- TI-2024-32797 Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair CVSS 3.1CRITICAL 9.8
- TI-2024-30255 An issue was discovered in Mbed TLS 3.6 before 3.6.1. CVSS 3.1CRITICAL 9.8
- TI-2026-27113 An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. CVSS 3.1CRITICAL 9.8
- TI-2026-27111 An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. CVSS 3.1CRITICAL 9.8
- TI-2024-30256 An issue was discovered in Mbed TLS 3.x before 3.6.1. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-45199 · CVE Program
- CVE-2023-45199 · NVD
- FIRST EPSS
- GHSA-9xgp-crg4-hgxq · GitHub Advisory Database · CC BY 4.0
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