CVE-2021-20227: oracle communications_network_charging_and_control Use After Free
Vulnerability summary
CVE-2021-20227 is a medium (CVSS 5.5) Use After Free vulnerability in oracle communications_network_charging_and_control. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.3% of scored vulnerabilities.
Timeline
- 23-03-2021PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
A flaw was found in SQLite's SELECT query functionality (src/select.c). This flaw allows an attacker who is capable of running SQL queries locally on the SQLite database to cause a denial of service or possible code execution by triggering a use-after-free. The highest threat from this vulnerability is to system availability.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
+0.16 pp
From 0.50% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Oracle6 products
- communications_network_charging_and_control≥ 12.0.1.0, ≤ 12.0.4.0.0 | 6.0.1
- enterprise_manager_for_oracle_database13.4.0.0
- jd_edwards_enterpriseone_tools< 9.2.6.0
- mysql_workbench≤ 8.0.26
- outside_in_technology8.5.5
Alpine1 product
- sqlite≥ 3.33.0, < 3.32.1-r1 | ≥ 3.33.0, < 3.34.1-r0
Debian1 product
- sqlite3< 3.34.1-1
Sqlite1 product
- sqlite≥ 3.33.0, < 3.34.1
4 vendors · 9 products
References
12 links- security.netapp.com/advisory/ntap-20210423-0010/Third Party Advisory
