CVE-2018-19831

The ToOwner() function of a smart contract implementation for Cryptbond Network (CBN), an...

7.5 High

The ToOwner() function of a smart contract implementation for Cryptbond Network (CBN), an tradable Ethereum ERC20 token, allows attackers to change the owner of the contract, because the function does not check the caller's identity.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: High
Availability: None

Exploit likelihood

0.93%Up 0.5 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2018-19831
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-287
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-19831
Updated: 2026-11-02

EUVDEUVD-2018-11506 No score

Record: EUVD-2018-11506
Updated: 2026-11-03

GitHub AdvisoriesGHSA-g2j6-57h3-m248 No score

The ToOwner() function of a smart contract implementation for Cryptbond Network (CBN), an...

Record: GHSA-g2j6-57h3-m248
Updated: 2026-11-02

Affected products

cryptbond network project network

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-19831 is a high vulnerability (CVSS 7.5) in Cryptbond Network Project Network, published December 31, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.93%, the 60th percentile. No source names a fixed version.