Predictable mnemonic generation in Trust Wallet Core / Trust Wallet browser extension
CVE-2023-31290 affects Trust Wallet Core before 3.1.1, as used by the Trust Wallet browser extension before 0.0.183, specifically extension versions 0.0.172 through 0.0.182. The vulnerability is caused by use of the mt19937 Mersenne Twister PRNG with a single 32-bit seed as the entropy source for wallet mnemonic generation. Because the seed space is only 2^32, the number of possible mnemonics is drastically reduced from the expected cryptographic keyspace to roughly four billion possibilities. This makes generated wallet secrets predictable and enumerable. The issue was reportedly exploited in the wild in December 2022 and March 2023. The description provided indicates attackers could identify Ethereum addresses created since the 0.0.172 release and test whether they correspond to wallets generated by the vulnerable extension, enabling recovery of the associated wallet secrets and theft of funds.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The content references CVE-2023-31290 in connection with deterministic random number generation and private key compromise, but provides no concrete technical details about the vulnerability itself.
Referenced in the Trust Wallet extension incident section as an associated CVE, but the content does not describe what CVE-2023-31290 is or how it relates technically to the compromise.
Referenced in the Trust Wallet extension hack section as a CVE associated with the broader threat/IOC listing, but not explained in the provided content.
결정론적 난수 생성 취약성과 연계된 비트코인 개인 키 노출 위험으로 언급되지만, 본문 내 상세 설명은 제한적이다.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.