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TI-2023-16414 Aliases CVE-2023-33242GHSA-7rw5-c532-37cv

Lindell17 TSS Abort Mishandling

Priority HIGH 76CWE-74Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01506 74th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
Lindell TSS ImplementationsWallet17—No fix listedCNA
  • Wallet VendorLindell TSS Implementations Affected 17 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lindell17_project:lindell17:-:*:*:*:*:*:*:*not specified by NVDVulnerableLindell17 Project
  • cpe:2.3:a:lindell17_project:lindell17:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Lindell17 Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-33242
  2. 2026-10-03 Alias added: GHSA-7rw5-c532-37cv

References

Exploit 3

Advisory 1

Sources

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