Cyber Resilience

CVE-2023-49798

Openzeppelin Contracts 4.9.4

Published
09 December 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0054 43th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2023-49798 is a medium-severity Always-Incorrect Control Flow Implementation (CWE-670) vulnerability in Openzeppelin Contracts. Its CVSS base score is 5.9 (Medium).

Operationally, ranked at the 43th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

OpenZeppelin Contracts is a library for smart contract development. A merge issue when porting the 5.0.1 patch to the 4.9 branch caused a line duplication. In the version of `Multicall.sol` released in `@openzeppelin/contracts@4.9.4` and `@openzeppelin/contracts-upgradeable@4.9.4`, all subcalls are executed twice.…

more

Concretely, this exposes a user to unintentionally duplicate operations like asset transfers. The duplicated delegatecall was removed in version 4.9.5. The 4.9.4 version is marked as deprecated. Users are advised to upgrade. There are no known workarounds for this issue.

CWE(s)
CWE-670

Related Threats

CVEs Like This One

CVE-2023-30542Same product: Openzeppelin Contracts
CVE-2023-34459Same product: Openzeppelin Contracts
CVE-2024-27094Same product: Openzeppelin Contracts
CVE-2024-45304Same product: Openzeppelin Contracts
CVE-2023-34234Same product: Openzeppelin Contracts
CVE-2023-30541Same product: Openzeppelin Contracts
CVE-2023-26488Same product: Openzeppelin Contracts
CVE-2023-23940Same product: Openzeppelin Contracts
CVE-2023-40014Same vendor: Openzeppelin
CVE-2025-32996Shared CWE-670

Affected Assets

openzeppelin
contracts
4.9.4
openzeppelin
contracts upgradeable
4.9.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V9.2.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent incorrect control-flow implementations via reviews, testing, and static analysis.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect paths that deviate from intended logic.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle processes can catch incorrect control-flow logic during design and code review.

A.8.28 Secure coding partial match
prevents

Secure coding standards and reviews directly target flawed control-flow implementations.

A.8.32 Change management partial match
prevents

Change-management gates may prevent deployment of flawed logic but do not address the coding defect itself.

References