No exploitation reportedFix available

CVE-2026-48163

Q: Is CVE-2026-48163 actively exploited?

Active exploitation of CVE-2026-48163 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2026-48163?

CVE-2026-48163 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2026-06-12
Fixed in11.8.8 · 11.4.12 · 10.11.18 · 10.6.27
WeaknessCWE-78

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

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.27, 10.11.1 to before 10.11.18, 11.4.1 to before 11.4.12, 11.8.1 to before 11.8.8, and 12.3.1, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the rsync SST method. This issue has been patched in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2.

Timeline

dates in UTC

2026-06-1218:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 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-2026-48163?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-48163?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

MariaDB

Branch	Affected	Fixed in	Source
11.8	≥ 11.8.1, < 11.8.8	11.8.8	NVD
11.4	≥ 11.4.1, < 11.4.12	11.4.12	NVD
10.11	≥ 10.11.1, < 10.11.18	10.11.18	NVD
10.6	≥ 10.6.1, < 10.6.27	10.6.27	NVD
12.3	= 12.3.1	no fix published	NVD

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

Fix

Update MariaDB to 11.8.8 · 11.4.12 · 10.11.18 · 10.6.27

Advisories and patches

github.comVendor Advisory

Detection

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

Sources

CISA-ADPSSVC decisionnone2026-06-15
OpenCVESSVC decisionnone—
CNACVSS 3.18read 2026-10-23
NVDCVSS 3.17.2read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2026-06-12
Last Modified: 2026-08-03
NVD status: Modified

Frequently asked questions

What is CVE-2026-48163?

Is CVE-2026-48163 actively exploited?

Active exploitation of CVE-2026-48163 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-48163?

CVE-2026-48163 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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