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CVE-2023-34458

19
FAUCET Score

CVE-2023-34458 affects MultiversX mx-chain-go, where a flaw in relayed transaction processing could incorrectly increment the sender's account nonce even if the inner transaction failed. This vulnerability, rated Medium with a CVSS score of 5.3, could lead to a limited Denial of Service (DoS) attack against targeted accounts due to the strict processing issue during block validation. While a fix is available in version 1.4.17, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.17CPE matchmatch criteria
cpe:2.3:a:multiversx:mx-chain-go:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 48th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/multiversx/mx-chain-goFixed in: 1.4.17

Vendor Advisories (1)

goGHSA-j494-7x2v-vvvphigh

mx-chain-go's relayed transactions always increment nonce

Jul 13, 2023

References

github.com / multiversx/mx-chain-go/blob/babdb144f1316ab6176bf3dbd7d4621120414d43/integrationTests/vm/txsFee/relayedMoveBalance_test.go
Product
github.com / multiversx/mx-chain-go/commit/babdb144f1316ab6176bf3dbd7d4621120414d43
Patch
github.com / multiversx/mx-chain-go/releases/tag/v1.4.17
Release Notes
github.com / multiversx/mx-chain-go/security/advisories/GHSA-j494-7x2v-vvvp
Vendor Advisory