What is CVE-2022-45347?

CVE-2022-45347 is a critical-severity vulnerability in Apache Shardingsphere, classified under Incomplete Cleanup. CVSS score: 9.8/10. Published 2022-12-22.

How severe is CVE-2022-45347?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-45347 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Apache Shardingsphere

CVE-2022-45347

Apache ShardingSphere-Proxy prior to 5.3.0 when using MySQL as database backend didn't cleanup the database session completely after client authentication failed, which allowed an attacker to execute normal commands by constructing a special MySQL client. This vulnerability has been fixed in Apache ShardingSphere 5.3.0.

Published 2022-12-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 71st percentile — 71.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Apache Shardingsphere
Apache Software Foundation Shardingsphere-Proxy — versions 0

Weakness classification (CWE)

CWE-459 — Incomplete Cleanup

Public proof-of-concept exploits

Threekiii/CVE

References

lists.apache.org/thread/l5rz7j4rg10o7ywtgknh2f5hxnv6yw3l (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2022-45347?: CVE-2022-45347 is a critical-severity vulnerability in Apache Shardingsphere, classified under Incomplete Cleanup. CVSS score: 9.8/10. Published 2022-12-22.
How severe is CVE-2022-45347?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-45347 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.