NVD / CVE Program· CNA GitHub_M

CVE-2026-44172: MariaDB: mysql_real_escape_string() incorrectly handled big5

Noroxi assessment

Priority: Monitor (action score 27/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1% (FIRST EPSS); higher than 64.3% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: mariadb-connector-c (AlmaLinux:10) 3.4.4-2.el10_2; mariadb-connector-c-config (AlmaLinux:10) 3.4.4-2.el10_2; mariadb-connector-c-devel (AlmaLinux:10) 3.4.4-2.el10_2.

Low priority for now. Upgrade to mariadb-connector-c (AlmaLinux:10) 3.4.4-2.el10_2; mariadb-connector-c-config (AlmaLinux:10) 3.4.4-2.el10_2; mariadb-connector-c-devel (AlmaLinux:10) 3.4.4-2.el10_2 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. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in versions 3.3.19 and 3.4.9.

MediumCVSS 6.9 · v4.0—No exploit Fix available

Published: Jun 12, 2026
Updated: Oct 26, 2026
EPSS: 1.0% · 64th percentile
CWE: CWE-89

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 27 / 40 · 6.9 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.0%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · GitHub_M: 6.9; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

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
No public exploit code on record
A fix has been released

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

Is your version affected? Check it

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.

Vendor	Product	CPE
mariadb	mariadb	cpe:2.3:a:mariadb:mariadb
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux

Affected versions

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

mariadb mariadb3.3.18
mariadb mariadb3.4.8
redhat enterprise linux10.0

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
- = 3.3.18, = 3.4.8affected

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
AlmaLinux:10	mariadb-connector-c	before 3.4.4-2.el10_2	3.4.4-2.el10_2
AlmaLinux:10	mariadb-connector-c-config	before 3.4.4-2.el10_2	3.4.4-2.el10_2
AlmaLinux:10	mariadb-connector-c-devel	before 3.4.4-2.el10_2	3.4.4-2.el10_2
AlmaLinux:10	mariadb-connector-c-doc	before 3.4.4-2.el10_2	3.4.4-2.el10_2
AlmaLinux:10	mariadb-connector-c-test	before 3.4.4-2.el10_2	3.4.4-2.el10_2
AlmaLinux:8	mariadb-connector-c	before 3.1.11-3.el8_10	3.1.11-3.el8_10
AlmaLinux:8	mariadb-connector-c-config	before 3.1.11-3.el8_10	3.1.11-3.el8_10
AlmaLinux:8	mariadb-connector-c-devel	before 3.1.11-3.el8_10	3.1.11-3.el8_10
AlmaLinux:9	mariadb-connector-c	before 3.2.6-2.el9_8	3.2.6-2.el9_8
AlmaLinux:9	mariadb-connector-c-config	before 3.2.6-2.el9_8	3.2.6-2.el9_8
AlmaLinux:9	mariadb-connector-c-devel	before 3.2.6-2.el9_8	3.2.6-2.el9_8
AlmaLinux:9	mariadb-connector-c-doc	before 3.2.6-2.el9_8	3.2.6-2.el9_8
AlmaLinux:9	mariadb-connector-c-test	before 3.2.6-2.el9_8	3.2.6-2.el9_8
Alpine:v3.20	mariadb	before 10.11.17-r0	10.11.17-r0
Alpine:v3.21	mariadb	before 11.4.11-r0	11.4.11-r0
Alpine:v3.24	mariadb	before 11.8.7-r0	11.8.7-r0
Debian:12	mariadb	before 1:10.11.18-0+deb12u1	1:10.11.18-0+deb12u1
Debian:13	mariadb	from 0	—
Debian:14	mariadb	before 1:11.8.8-1	1:11.8.8-1
openSUSE:Leap 16.0	mariadb	before 11.8.8-160000.1.1	11.8.8-160000.1.1
openSUSE:Leap 16.0	mariadb-connector-c	before 3.4.9-160000.1.1	3.4.9-160000.1.1
openSUSE:Tumbleweed	mariadb	before 11.8.7-1.1	11.8.7-1.1
openSUSE:Tumbleweed	mariadb-connector-c	before 3.4.9-2.1	3.4.9-2.1
PyPI	mariadb	up to and including 3.3.18	—

+96

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…
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…
40Plan
CVE-2026-92262MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
39Monitor

Published before and after this one in the same product

← EarlierCVE-2026-44170Jun 12, 2026 · MariaDB: Argument injection in CONNECT REST Xcurl on Windows via unsanitized URL
25Monitor
← EarlierCVE-2026-44171Jun 12, 2026 · MariaDB: path traversal in mbstream
31Monitor
Later →CVE-2026-44173Jun 12, 2026 · MariaDB: FILE privilege was not checked for subqueries in the FROM clause
21Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
almalinux:mariadb-connector-c	3.4.4-2.el10_2 · AlmaLinux:10	Package registry (OSV)
almalinux:mariadb-connector-c-config	3.4.4-2.el10_2 · AlmaLinux:10	Package registry (OSV)
almalinux:mariadb-connector-c-devel	3.4.4-2.el10_2 · AlmaLinux:10	Package registry (OSV)
almalinux:mariadb-connector-c-doc	3.4.4-2.el10_2 · AlmaLinux:10	Package registry (OSV)
almalinux:mariadb-connector-c-test	3.4.4-2.el10_2 · AlmaLinux:10	Package registry (OSV)
alpine:mariadb	10.11.17-r0 · Alpine:v3.20	Package registry (OSV)
debian:mariadb	1:10.11.18-0+deb12u1 · Debian:12	Package registry (OSV)
opensuse:mariadb	11.8.7-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
opensuse:mariadb-connector-c	3.4.9-2.1 · openSUSE:Tumbleweed	Package registry (OSV)
red hat:mariadb-connector-c	0:3.4.9-1.hum1 · Red Hat:hummingbird:1	Package registry (OSV)
red hat:mariadb-connector-c-config	0:3.4.9-1.hum1 · Red Hat:hummingbird:1	Package registry (OSV)
red hat:mariadb-connector-c-debuginfo	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-debugsource	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-devel	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-devel	0:3.4.9-1.hum1 · Red Hat:hummingbird:1	Package registry (OSV)
red hat:mariadb-connector-c-devel-debuginfo	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-doc	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-doc	0:3.4.9-1.hum1 · Red Hat:hummingbird:1	Package registry (OSV)
red hat:mariadb-connector-c-test	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
red hat:mariadb-connector-c-test	0:3.4.9-1.hum1 · Red Hat:hummingbird:1	Package registry (OSV)
red hat:mariadb-connector-c-test-debuginfo	0:3.4.4-2.el10_2 · Red Hat:enterprise_linux:10.2	Package registry (OSV)
rocky linux:galera	0:26.4.27-1.el10_2 · Rocky Linux:10	Package registry (OSV)
rocky linux:mariadb	3:11.8.8-1.module+el9.8.0+40229+87be66a2 · Rocky Linux:9	Package registry (OSV)
rocky linux:mariadb-connector-c	0:3.4.4-2.el10_2 · Rocky Linux:10	Package registry (OSV)
rocky linux:mariadb10.11	3:10.11.18-1.el10_2 · Rocky Linux:10	Package registry (OSV)
suse:mariadb	11.8.8-160000.1.1 · SUSE:Linux Enterprise Server 16.0	Package registry (OSV)
suse:mariadb-connector-c	3.4.9-160000.1.1 · SUSE:Linux Enterprise Server 16.0	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

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.

No dated events beyond publication.

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.

CVE-2026-86047126 days apartMariaDB: Insufficient quoting in mariadb-dump and SHOW commands
30Monitor

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

MariaDBHackerOne · disclosure only (VDP)

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.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

The bug in code

The whole CWE-89 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = '" + owner + "'"
4);

Fixed

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = $1",
4  [owner]
5);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

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

References

github.com/MariaDB/server/security/advisories/GHSA-pv9p-5w55-55jm

Show all references (8 more)

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

All records