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CVE-2021-43620

25
FAUCET Score

CVE-2021-43620 is a high-severity vulnerability affecting the fruity Rust crate up to version 0.2.0, where improper filename extension validation can occur. This is due to the CStr::from_ptr method potentially truncating strings at the first null byte, leading to incomplete string conversion. With a CVSS score of 7.5, this vulnerability has a low attack complexity and no user interaction required, allowing an attacker to achieve high integrity impact without affecting confidentiality or availability. There is currently no known active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.1.0CPE matchmatch criteria
cpe:2.3:a:fruity_project:fruity:0.1.0:*:*:*:*:rust:*:*
0.2.0CPE matchmatch criteria
cpe:2.3:a:fruity_project:fruity:0.2.0:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 48th percentile among its peer group of 51,551 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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: fruityFixed in: 0.3.0

Vendor Advisories (1)

rustGHSA-h352-g5vw-3926high

Improper Input Validation in fruity

Nov 16, 2021

References

github.com / nvzqz/fruity/issues/14
ExploitIssue TrackingPatchThird Party Advisory
github.com / rustsec/advisory-db/pull/1102
ExploitPatchThird Party Advisory
rustsec.org / advisories/RUSTSEC-2021-0123.html
ExploitThird Party Advisory