CVE-2021-33589: ribose rnp Insufficiently Protected Credentials
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2021-33589DEBIAN-CVE-2021-33589
Published 21-04-2023Last modified 04-02-2025
Vulnerability summary
CVE-2021-33589 is a high (CVSS 7.5) Insufficiently Protected Credentials vulnerability in ribose rnp. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 21-04-2023PublishedVulnerability first disclosed.
- 04-02-2025Last modifiedVulnerability information updated.
Description
Ribose RNP before 0.15.1 does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than on the tin of the algorithm.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
0.00 pp
From 0.49% on 18-09-2026
18-09-202618-10-2026
EPSS score0.49%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (open.ribose.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian1 product
- rnp< 0.15.1-1
Ribose1 product
- rnp< 0.15.1
Ubuntu1 product
- rnpAll versions (No fix recorded)
3 vendors · 3 products
