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NVD / CVE Program· CNA GitHub_M

CVE-2026-32710: Heap-based Buffer Overflow in MariaDB

Noroxi assessment

Priority: Monitor (action score 39/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.89% (FIRST EPSS); higher than 59.6% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: mariadb (Debian:13) 1:11.8.6-0+deb13u1; mariadb (Debian:14) 1:11.8.6-1; mariadb (openSUSE:Tumbleweed) 11.8.6-1.1.

Low priority for now. Upgrade to mariadb (Debian:13) 1:11.8.6-0+deb13u1; mariadb (Debian:14) 1:11.8.6-1; mariadb (openSUSE:Tumbleweed) 11.8.6-1.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

MariaDB server is a community developed fork of MySQL server. An authenticated user can crash MariaDB versions 11.4 before 11.4.10 and 11.8 before 11.8.6 via a bug in JSON_SCHEMA_VALID() function. Under certain conditions it might be possible to turn the crash into a remote code execution. These conditions require tight control over memory layout which is generally only attainable in a lab environment. This issue is fixed in MariaDB 11.4.10, MariaDB 11.8.6, and MariaDB 12.2.2.

CriticalCVSS 9.9 · v3.1—Proof of concept Fix available
Published
Mar 20, 2026
Updated
Jun 17, 2026
EPSS
0.8% · 59th percentile

Report tools

JSON

Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.9 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.8%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.9
CNA · GitHub_M
8.6
1.3 point gap

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-32710

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
mariadbmariadb

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • mariadb mariadb11.4.1 and later · before 11.4.10
  • mariadb mariadb11.8.1 and later · before 11.8.6
  • mariadb mariadb12.1.2

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • MariaDB server

    • >= 11.4.1, < 11.4.10, >= 11.8.1, < 11.8.6, >= 12.1.2, < 12.2.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:13mariadbbefore 1:11.8.6-0+deb13u11:11.8.6-0+deb13u1
Debian:14mariadbbefore 1:11.8.6-11:11.8.6-1
openSUSE:Tumbleweedmariadbbefore 11.8.6-1.111.8.6-1.1
Red Hat:enterprise_linux:10.2galerabefore 0:26.4.25-1.el10_20:26.4.25-1.el10_2
Red Hat:enterprise_linux:10.2galera-debuginfobefore 0:26.4.25-1.el10_20:26.4.25-1.el10_2
Red Hat:enterprise_linux:10.2galera-debugsourcebefore 0:26.4.25-1.el10_20:26.4.25-1.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8before 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-backupbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-backup-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-client-utilsbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-commonbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-debugsourcebefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-develbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-embeddedbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-embedded-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-embedded-develbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-errmsgbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-gssapi-serverbefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-gssapi-server-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-oqgraph-enginebefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-oqgraph-engine-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-pambefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2
Red Hat:enterprise_linux:10.2mariadb11.8-pam-debuginfobefore 3:11.8.6-2.el10_23:11.8.6-2.el10_2

+40

Same product

mariadb: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-26785MariaDB v10.5 was discovered to contain a remote code execution (RCE) vulnerability via UDF Code in a Shared Object File, followed by a "cre
    40Plan
  • CVE-2021-27928A remote code execution issue was discovered in MariaDB 10.2 before 10.2.37, 10.3 before 10.3.28, 10.4 before 10.4.18, and 10.5 before 10.5.
    40Plan
  • CVE-2012-5613MySQL 5.5.19 and possibly other versions, and MariaDB 5.5.28a and possibly other versions, when configured to assign the FILE privilege to u
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2025-13699Dec 23, 2025 · MariaDB mariadb-dump Utility Directory Traversal Remote Code Execution Vulnerability
    28Monitor
  • ← EarlierCVE-2026-3494Mar 3, 2026 · MariaDB Server Audit Plugin Comment Handling Bypass
    21Monitor
  • Later →CVE-2026-35549Apr 3, 2026 · An issue was discovered in MariaDB Server before 11.4.10, 11.5.x through 11.8.x before 11.8.6, and 12.x before 12.2.2.
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:mariadb1:11.8.6-0+deb13u1 · Debian:13Package registry (OSV)
opensuse:mariadb11.8.6-1.1 · openSUSE:TumbleweedPackage registry (OSV)
red hat:galera0:26.4.25-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:galera-debuginfo0:26.4.25-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:galera-debugsource0:26.4.25-1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.83:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-backup3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-backup-debuginfo3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-client-utils3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-common3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-debuginfo3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-debugsource3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-devel3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:mariadb11.8-embedded3:11.8.6-2.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
rocky linux:galera0:26.4.25-1.el10_2 · Rocky Linux:10Package registry (OSV)
rocky linux:mariadb3:11.8.6-2.module+el9.8.0+40192+484cc2de · Rocky Linux:9Package registry (OSV)
rocky linux:mariadb11.83:11.8.6-2.el10_2 · Rocky Linux:10Package registry (OSV)
suse:mariadb11.8.6-150700.3.12.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP7Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:162026-05-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+46 d
  3. TodayNov 9, 2026+234 d

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records