CVE-2022-27134Public exploitNetwork attack vector

Cryptocurrency theft via unchecked token issuer

Published May 12, 2022 · Updated Aug 3, 2024

Access-control failure in EOSIO batdappboomx 327c04cf allows remote attackers to obtain cryptocurrency through crafted transfer calls. The transfer dispatcher invokes the payment handler without checking that the caller is the official eosio.token issuer. An attacker-controlled EOSIO account can call transfer@batdappboomx with memo action:buy, causing the contract to pay a reward despite receiving no ticket fee.

CVSS severity7.5
High
EPSS probability2.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access-control failure in EOSIO batdappboomx 327c04cf allows remote attackers to obtain cryptocurrency through crafted transfer calls. The transfer dispatcher invokes the payment handler without checking that the caller is the official eosio.token issuer. An attacker-controlled EOSIO account can call transfer@batdappboomx with memo action:buy, causing the contract to pay a reward despite receiving no ticket fee.

The record

CVE
CVE-2022-27134
Published
May 12, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/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-863Incorrect Authorization

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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