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CVE-2020-28924

24
FAUCET Score

CVE-2020-28924 describes a weak random number generator vulnerability in Rclone versions prior to 1.53.3, affecting products like fedoraproject fedora and rclone. This flaw resulted in the generation of predictable passwords, deterministically linked to the software's start time, significantly reducing their entropy. With a CVSS score of 7.5 (High), this vulnerability allows an unauthenticated attacker to potentially decrypt sensitive data encrypted with these weak passwords due to the feasibility of creating a dictionary of possible passwords. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.53.3CPE matchmatch criteria
cpe:2.3:a:rclone:rclone:*:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

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
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 48th 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

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/rclone/rcloneFixed in: 1.53.3

Vendor Advisories (1)

goGHSA-rmw5-xpg9-jr29high

Use of Cryptographically Weak Pseudo-Random Number Generator in Rclone

Jun 10, 2021

References

github.com / rclone/rclone/issues/4783
ExploitPatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/UJIFT24Q6EFXLQZ24AER2QGFFZLMIPCD
rclone.org / downloads
Vendor Advisory
security.gentoo.org / glsa/202107-14
Third Party Advisory