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CVE-2024-43402

27
FAUCET Score

CVE-2024-43402 is a critical vulnerability affecting Rust versions prior to 1.81.0, specifically impacting the std::process::Command function on Windows when invoking batch files. This flaw allows for a bypass of a previous fix (CVE-2024-24576) by exploiting how Windows handles trailing whitespace or periods in batch file names, leading to incorrect argument escaping. With a CVSS score of 8.8 (HIGH), it presents a significant risk (FAUCET Risk Score 70/100) due to potential command injection (CWE-78, CWE-88) with high confidentiality, integrity, and availability impacts, requiring only low privileges and local access. Currently, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion, but users are advised to update to Rust 1.81.0 to mitigate the risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.81.0CPE matchmatch criteria
cpe:2.3:a:rust-lang:rust:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.4
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.74%
Probability of exploitation in next 30 days
EPSS Percentile
51.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0074 is in the 87th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

Vendor Patches (1)

github_advisoryworkaround availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2024-43402Important

rust: Rust standard library did not properly escape arguments when invoking batch files on Windows using the Command API

Sep 4, 2024

References

blog.rust-lang.org / 2024/04/09/cve-2024-24576.html
Vendor Advisory
github.com / rust-lang/rust/security/advisories/GHSA-2xg3-7mm6-98jj
MitigationThird Party Advisory
learn.microsoft.com / en-us/troubleshoot/windows-client/shell-experience/file-folder-name-whitespace-characters
PatchVendor Advisory