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CVE-2024-28123

27
FAUCET Score

CVE-2024-28123 is a critical out-of-bounds buffer write vulnerability affecting the Wasmi WebAssembly interpreter, specifically when a host calls or resumes a Wasm function with an excessive number of parameters (over 128). This flaw, patched in Wasmi version 0.31.1, does not impact Wasm-to-Wasm calls. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.15.0, < 0.31.1CPE matchmatch criteria
cpe:2.3:a:wasmi-labs:wasmi:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0080 is in the 36th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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
rustpatch availablevia ghsa
Product: wasmiFixed in: 0.31.1

Vendor Advisories (1)

rustGHSA-75jp-vq8x-h4cqhigh

Wasmi Out-of-bounds Write for host to Wasm calls with more than 128 Parameters

Mar 7, 2024

References

github.com / wasmi-labs/wasmi/commit/f7b3200e9f3dc9e2cbca966cb255c228453c792f
Patch
github.com / wasmi-labs/wasmi/releases/tag/v0.31.1
Release Notes
github.com / wasmi-labs/wasmi/security/advisories/GHSA-75jp-vq8x-h4cq
Vendor Advisory