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CVE-2021-45694

24
FAUCET Score

CVE-2021-45694 describes an uninitialized memory read vulnerability in the rdiff crate for Rust, affecting versions through 2021-02-03. This high-severity vulnerability (CVSS 7.5) allows an unauthenticated attacker to remotely read sensitive information, though it does not impact integrity or availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.1.2CPE matchmatch criteria
cpe:2.3:a:rdiff_project:rdiff:*:*:*:*:*: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:H/I:N/A:N

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

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 38th percentile among its peer group of 51,506 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

Vendor Advisories (1)

rustGHSA-2rxc-8f9w-fjq8high

Window may read from uninitialized memory locations in rdiff

Jan 6, 2022

References

raw.githubusercontent.com / rustsec/advisory-db/main/crates/rdiff/RUSTSEC-2021-0094.md
Third Party Advisory
rustsec.org / advisories/RUSTSEC-2021-0094.html
Third Party Advisory