PatchTheCVECVE-2018-19833: The owned function of a smart contract implementation for DDQ, an tradable Ethereum ERC20 token, allows attack
CVE-2018-19833 is a high-severity flaw (CVSS 7.5) affecting ddq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The owned function of a smart contract implementation for DDQ, an tradable Ethereum ERC20 token, allows attackers to change the owner of the contract, because the function does not check the caller's identity.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.9% (top 39%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2019-12-31 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2018-19833?
ddq: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2018-19833 being exploited?
CVE-2018-19833 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2018-19833 affect?
CVE-2018-19833 affects ddq. Severity is high (CVSS 7.5). The owned function of a smart contract implementation for DDQ, an tradable Ethereum ERC20 token, allows attackers to change the owner of the contract, because the function does not check the caller's identity.
How urgent is CVE-2018-19833?
Priority 46/100. High severity; Remotely exploitable, no login, no user action