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TI-2021-12972 Aliases CVE-2021-33589GHSA-85rv-559q-9c4r

Ribose RNP before 0.15.1 does not implement a required step in a cryptographic algorithm…

Priority LOW 33CWE-522Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-522.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00492 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ribose:rnp:*:*:*:*:*:*:*:*before 0.15.1VulnerableRibose
  • cpe:2.3:a:ribose:rnp:*:*:*:*:*:*:*:* Versions before 0.15.1 Vulnerable ·Ribose

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-33589
  2. 2026-10-03 Alias added: GHSA-85rv-559q-9c4r

References

Exploit 1

Other 1

  • TI-2023-13854 Ribose RNP before 0.16.3 sometimes lets secret keys remain unlocked after use. CVSS 3.1HIGH 7.5
  • TI-2023-13853 Ribose RNP before 0.16.3 may hang when the input is malformed. CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences