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TI-2021-19338 Aliases CVE-2021-43393GHSA-94rv-67rm-q3v8

STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to…

Priority LOW 27CWE-347Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.

Summary

STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to abuse signature verification. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE-J in closed configuration and J-SIGN (when signature verification is activated) but not for J-SAFE3 EPASS BAC and EAC products. It might also impact other products based on the J-SAFE-3 Java Card platform.

Why it matters now

EPSS 0.00152 4th percentileScored 2026-11-07
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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:st:stsafe-j_firmware:1.1.4:*:*:*:*:*:*:*1.1.4VulnerableSTMicroelectronics
cpe:2.3:h:st:stsafe-j:-:*:*:*:*:*:*:*not specified by NVDRunning onSTMicroelectronics
cpe:2.3:o:st:j-safe3_firmware:1.2.5:*:*:*:*:*:*:*1.2.5VulnerableSTMicroelectronics
cpe:2.3:h:st:j-safe3:-:*:*:*:*:*:*:*not specified by NVDRunning onSTMicroelectronics
  • cpe:2.3:o:st:stsafe-j_firmware:1.1.4:*:*:*:*:*:*:* Versions 1.1.4 Vulnerable ·STMicroelectronics
  • cpe:2.3:h:st:stsafe-j:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·STMicroelectronics
  • cpe:2.3:o:st:j-safe3_firmware:1.2.5:*:*:*:*:*:*:* Versions 1.2.5 Vulnerable ·STMicroelectronics
  • cpe:2.3:h:st:j-safe3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·STMicroelectronics

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43393
  2. 2026-10-03 Alias added: GHSA-94rv-67rm-q3v8

References

Advisory 2

  • TI-2021-19337 STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to… CVSS 3.1MEDIUM 6.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences