1 Exchange security record

Ethereum1ex.com

As of 3 Nov 2026, 1 Exchange has 1 audit report on Trustblock, by CertiK, dated 29 Dec 2023. That report lists no open critical findings.

Critical findings
No open critical findings
In 1 report.
Open the latest report
Your label, live
Get the label for your site

Record last updated . It holds audits, findings and contracts up to Nov 2026, and incidents up to Oct 2026. Trustblock does not review code.

Audits1

Newest first

AuditSecurity firmDateScopeCritical findingsReport
1ex AuditSecurity firm: CertiKDate: Scope: Not recorded (see the report)No open critical findingsOpen · skynet.certik.com

Findings15

Statuses are the security firm’s own, from each report.

SeverityOpenAcknowledgedFixed
Critical000
High040
Medium010
Low604
LowIncompatible with USDT contract1ex Audit · CertiK · 29 Dec 2023Fixed

Some stable coin contract like [USDT](https://etherscan.io/token/0xdac17f958d2ee523a2206206994597c13d831ec7#code) is not compatible with the Openzeppelin ERC20 template, for example, it will not return bool value when transfer operation finished, which may cause the require statement always revert. **[Note]**: Since the `_usdContract` is unknown during the auditing and is a third-party dependency, the team should be careful with this issue.

Open the report
LowMissing Validation of `vestingContract`1ex Audit · CertiK · 29 Dec 2023Fixed

The linked function allows the `ADMIN` role to revoke vesting schedules. However, this function does not check whether `_revokableVestings` has contained the input `vestingContract`. Invoking functions on an unverified third-party address may introduce significant risks.

Open the report
LowMissing Zero Address Validation1ex Audit · CertiK · 29 Dec 2023Fixed

The provided code snippet lacks a validation check to ensure that the input address is not `address(0)`. This input `address` is utilized to create a new `Schedule`: ```solidity schedule = Schedule( account, amount, 0, startTime, startTime + (cliffDays * 1 days), startTime + (cliffDays * 1 days) + (vestingDays * 1 days), asset, revokable, false ); ``` This address is designated to receive the vested `amount` in the `claim()` function. If `schedule.account` is set to the zero address, the `claim()` function will always fail. ```solidity require(IERC20(schedule.asset).transfer(schedule.account, amountToTransfer), "Vesting: transfer failed"); ```" It's crucial to add a validation check for the input address to prevent such issues.

Open the report
LowUnused Return Value1ex Audit · CertiK · 29 Dec 2023Fixed

The smart contract does not check or store the return value of an external call in a local or state variable, which may introduce vulnerabilities due to the unhandled outcome. ```solidity=203 _allVestings.add(_contract); ``` --- ```solidity=204 if (revokable) { _revokableVestings.add(_contract); } ``` --- ```solidity=260 _revokableVestings.remove(vestingContract); ```

Open the report

Contracts

No deployed address is recorded for these audits.

The reports name a repository or files. Open a report to see its scope.

Show this on your site

Is this your project? Show this record on your own website. The label states what the record holds, links to this page and updates by itself. It is free and needs no sign-in.

Content

Facts

Automatic: the three strongest facts of this project’s own record (its last audit and two more), highlighted. They update with the record. Picking a fact turns Automatic off.

Fixed as
Language

Style

Layout
Theme
Accent
Corners

Format

Size
Date
Embed as
HTML
<head>
<script src="https://widget.trustblock.run/project-widget.min.js" defer></script>
</head>
<body>
<div
data-tb-project-widget
data-tb-project-slug="1-exchange"
></div>
</body>

Paste the code where the label should appear. It uses no API credit and updates by itself.

Something wrong on this page? A missing report, a wrong date, a finding that was fixed since. Tell us and we check it against its source.

Tell us