02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: RiboseRNP 0.18.0 Vulnerable PKESK session keys
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.- EPSS probability
- 0.30% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 22.1% of scored records. A rank, not a probability.
- NVD base score
- 7.7 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:H/U:Red
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.2
- Published
- 2025-11-21 17:05Z9 MO AGO
- Last updated
- 2025-11-21 17:35Z9 MO AGO
- Reserved
- 2025-11-20
- Assigning CNA
- Ribose
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.7)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/RE:H/U:Red
- Weaknesses
- CWE-330Use of Insufficiently Random ValuesClass
- Data version
- 5.2
- Document digest
- e7194243fb2197af8adeb81671cf6415d252ccf59f76a4268a07acd453c92486
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
SRC: CNA
For standalone RNP users:
Upgrade to RNP 0.18.1 when available.
For distributions that have packaged 0.18.0:
Please update to 0.18.1 when released, or consider providing 0.17.1 as an
interim option.
For Thunderbird packages using system RNP:
If your Thunderbird package is built with system RNP support and RNP 0.18.0 is installed, update RNP to 0.18.1 or 0.17.1. Consider whether Thunderbird should continue using system RNP or switch to bundled RNP.
For all other users:
Users who encrypted sensitive data using RNP 0.18.0 (standalone or via Thunderbird with system RNP 0.18.0) should re-encrypt that data with RNP 0.18.1 or 0.17.1 based on their security requirements.