CVE-2022-27134: EOSIO batdappboomx v327c04cf has an Access-control vulnerability in the `transfer` function of the smart contr

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2022-27134 is a high-severity flaw (CVSS 7.5) affecting eosio batdappboomx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

EOSIO batdappboomx v327c04cf has an Access-control vulnerability in the `transfer` function of the smart contract which allows remote attackers to win the cryptocurrency without paying ticket fee via the `std::string memo` parameter.

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	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-863
Published	2022-05-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: b1

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

Am I affected?

Timeline

2022-05-13 01:15 UTCPublished CVE record published
2026-06-17 04:36 UTCUpdated Record last modified

b1 eosio batdappboomx DOWNGRADE

Affected: 327c04cf

Fixed in: no fixed release known

Safe to downgrade to: a release before 327c04cf

1. Check installed version

apt-cache policy eosio-batdappboomx || rpm -q eosio-batdappboomx || eosio-batdappboomx --version

2. No fixed release: DOWNGRADE to a release before 327c04cf (Debian / Ubuntu)

apt-cache madison eosio-batdappboomx sudo apt install eosio-batdappboomx=<VERSION_BEFORE_327c04cf> sudo apt-mark hold eosio-batdappboomx

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list eosio-batdappboomx sudo dnf downgrade eosio-batdappboomx-<VERSION_BEFORE_327c04cf> sudo dnf versionlock add eosio-batdappboomx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2022-27134?

eosio batdappboomx: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-27134 being exploited?

CVE-2022-27134 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-2022-27134 affect?

CVE-2022-27134 affects eosio batdappboomx. Severity is high (CVSS 7.5). EOSIO batdappboomx v327c04cf has an Access-control vulnerability in the `transfer` function of the smart contract which allows remote attackers to win the cryptocurrency without paying ticket fee via the `std::string memo` parameter.

How urgent is CVE-2022-27134?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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