01 Record
CVE-2022-20109
In ion, there is a possible use after free due to improper update of reference count. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction
UnratedPUBLISHEDCNA: MediaTek
CNA base scoreUnratedNo CNA CVSS vector
02 Description
In ion, there is a possible use after free due to improper update of reference count. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.11% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 1.7% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
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.
04 Metadata
- Published
- 2022-05-03 19:56Z4 YR AGO
- Last updated
- 2024-08-03 02:02Z2 YR AGO
- Reserved
- 2021-10-12
- Assigning CNA
- MediaTek
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 2b1065773397cda9ee61c199f57444ffdb26f649f6ee1ae052d857d6301c7c9d
05 Affected products
VendorProductVersionsPlatforms
06 References
- corp.mediatek.comhttps://corp.mediatek.com/product-security-bulletin/May-2022