No exploitation reportedFix available

CVE-2022-43766

Q: Is CVE-2022-43766 actively exploited?

Active exploitation of CVE-2022-43766 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-43766?

CVE-2022-43766 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2022-10-26
WeaknessCWE-400

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Apache IoTDB version 0.12.2 to 0.12.6, 0.13.0 to 0.13.2 are vulnerable to a Denial of Service attack when accepting untrusted patterns for REGEXP queries with Java 8. Users should upgrade to 0.13.3 which addresses this issue or use a later version of Java to avoid it.

Timeline

dates in UTC

2022-10-2616:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-43766?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-43766?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Apache iotdb

Branch	Affected	Fixed in	Source
0.12	≥ 0.12.2, ≤ 0.12.6	no fix published	NVD
0.13	≥ 0.13.0, ≤ 0.13.2	no fix published	NVD

apache-iotdb

Branch	Affected	Fixed in	Source
0.x	≥ 0.12.2, < 0.13.3	0.13.3	OSV

flink-tsfile-connector

Branch	Affected	Fixed in	Source
0.x	≥ 0.12.2, < 0.13.3	0.13.3	OSV

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

lists.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-05-07
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.17.52025-05-07
NVDCVSS 3.17.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-4002025-05-07
FIRST EPSSEPSS score1.6 %2026-10-22
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2022-10-26
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-43766?

Is CVE-2022-43766 actively exploited?

Active exploitation of CVE-2022-43766 has not been confirmed. Its EPSS score was 1.6% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-43766?

CVE-2022-43766 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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