CVE-2021-3006: The breed function in the smart contract implementation for Farm in Seal Finance (Seal), an Ethereum token, la

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HIGH 7.5REMOTEMITIGATE

CVE-2021-3006 is a high-severity flaw (CVSS 7.5) affecting seal finance. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The breed function in the smart contract implementation for Farm in Seal Finance (Seal), an Ethereum token, lacks access control and thus allows price manipulation, as exploited in the wild in December 2020 and January 2021.

Why this priority

High severity
Public exploit reference
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	1.3% (top 30%)
CISA exploited list	No
Published	2021-01-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: seal finance project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-01-03 06:15 UTCPublished CVE record published
2026-06-17 04:04 UTCUpdated Record last modified

seal finance project seal finance MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy seal-finance || rpm -q seal-finance || seal-finance --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2021-3006?

seal finance: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-3006 being exploited?

CVE-2021-3006 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-2021-3006 affect?

CVE-2021-3006 affects seal finance. Severity is high (CVSS 7.5). The breed function in the smart contract implementation for Farm in Seal Finance (Seal), an Ethereum token, lacks access control and thus allows price manipulation, as exploited in the wild in December 2020 and January 2021.

How urgent is CVE-2021-3006?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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