CVE-2022-33069Public exploit

Compiler crash via misclassified state-variable assignment

Published Jun 22, 2022 · Updated Aug 3, 2024

Reachable assertion in Ethereum Solidity 0.8.14 allows local users to crash solc via a crafted contract processed by SMTChecker. The assignment classifier fails to unwrap a tuple-wrapped qualified state variable, treats it as generic member access, and reaches an internal assertion. A user must compile the crafted source with SMTChecker enabled; the bounded consequence is termination of that compiler process.

CVSS severity5.5
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in Ethereum Solidity 0.8.14 allows local users to crash solc via a crafted contract processed by SMTChecker. The assignment classifier fails to unwrap a tuple-wrapped qualified state variable, treats it as generic member access, and reaches an internal assertion. A user must compile the crafted source with SMTChecker enabled; the bounded consequence is termination of that compiler process.

The record

CVE
CVE-2022-33069
Published
Jun 22, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-617
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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