CVE-2024-37154Public exploitNetwork attack vector

Unauthorized delegation via unenforced vested-balance limit

Published Jun 6, 2024 · Updated Aug 2, 2024

Improper authorization in Evmos 18.1.0 and earlier allows remote attackers to delegate unvested tokens from clawback vesting accounts. The staking delegation path accepts repeated delegation transactions without enforcing the ClawbackVestingAccount vested-balance limit. Exploitation requires control of a clawback vesting account and changes on-chain staking state by committing tokens that its vesting schedule has not released.

CVSS severity5.3
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Evmos 18.1.0 and earlier allows remote attackers to delegate unvested tokens from clawback vesting accounts. The staking delegation path accepts repeated delegation transactions without enforcing the ClawbackVestingAccount vested-balance limit. Exploitation requires control of a clawback vesting account and changes on-chain staking state by committing tokens that its vesting schedule has not released.

The record

CVE
CVE-2024-37154
Published
Jun 6, 2024
Updated
Aug 2, 2024
Vendor
Evmos
Product
Evmos
Classifications
CWE-285, CWE-863, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=18.1.0
  2. Affected versionversion=<= 18.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Evmos · Evmosversion=0 <=18.1.0; version=<= 18.1.0

Published CVSS scores

5.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-285Improper Authorization
CWE-863Incorrect Authorization
T1565.001Stored Data Manipulation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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