What is the CVSS score of CVE-2023-49798?

CVE-2023-49798 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. EPSS exploitation probability: 0.5%.

Is there a patch available for CVE-2023-49798?

Yes, a patch is available for CVE-2023-49798. Update the affected software to the latest version immediately.

Contracts CVE-2023-49798

HIGH

Always-Incorrect Control Flow Implementation (CWE-670)

2023-12-09 security-advisories@github.com

Information Disclosure Contracts Contracts Upgradeable

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Dec 09, 2023 - 00:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

1 npm packages depend on @openzeppelin/contracts (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 4.9.4.

DescriptionNVD

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. 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.

AnalysisAI

OpenZeppelin Contracts is a library for smart contract development. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-670. 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. 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. Affected products include: Openzeppelin Contracts, Openzeppelin Contracts Upgradeable. Version information: version 4.9.5..

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.