CVE-2022-35621Public exploitNetwork attack vector

Fraudulent NFT transfer records via unchecked sender

Published Sep 21, 2022 · Updated May 28, 2025

Improper access control in Evoh NFT EvohClaimable allows remote attackers to forge NFT transfer records through contract calls. The transferFrom and safeTransferFrom functions accept an arbitrary _from value without verifying that it owns the token, then emit that value as the seller in the Transfer event. An attacker must own the token or be approved to transfer it; the forged event can misrepresent the seller to marketplaces without transferring another holder's token.

CVSS severity5.3
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Evoh NFT EvohClaimable allows remote attackers to forge NFT transfer records through contract calls. The transferFrom and safeTransferFrom functions accept an arbitrary _from value without verifying that it owns the token, then emit that value as the seller in the Transfer event. An attacker must own the token or be approved to transfer it; the forged event can misrepresent the seller to marketplaces without transferring another holder's token.

The record

CVE
CVE-2022-35621
Published
Sep 21, 2022
Updated
May 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 21, 2022CVE publishedPublication date reported by the CVE source.
  2. May 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS: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-284Improper Access Control

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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