What’s Vulnerable › Vulnerabilities

CVE-2021-43668

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-11-18 · updated 2026-06-17
• Weakness: CWE-476

Description

Go-Ethereum 1.10.9 nodes crash (denial of service) after receiving a serial of messages and cannot be recovered. They will crash with "runtime error: invalid memory address or nil pointer dereference" and arise a SEGV signal.

Affected products

• ethereum go-ethereum: 1.10.9

References

• https://github.com/ethereum/go-ethereum/issues/23866
• https://github.com/ethereum/go-ethereum/issues/23866

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