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CVE-2021-25905

29
FAUCET Score

CVE-2021-25905 is a critical soundness issue in the Rust 'bra' crate versions prior to 0.1.1, allowing for the reading of uninitialized memory. With a CVSS score of 9.1, it presents a high-impact remote attack vector, potentially leading to confidentiality and availability compromise without user interaction. While there is no evidence of active exploitation or public exploit code, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1.1CPE matchmatch criteria
cpe:2.3:a:bra_project:bra:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.64%
Probability of exploitation in next 30 days
EPSS Percentile
73.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0164 is in the 61st 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 (1)

rustpatch availablevia ghsa
Product: braFixed in: 0.1.1

Vendor Advisories (1)

rustGHSA-j8qq-58cr-8cc7critical

Out of bounds read in bra

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2021-0008.html
ExploitPatchThird Party Advisory