NVD / CVE Program· CNA redhat

CVE-2023-5157: Mariadb: node crashes with transport endpoint is not connected mysqld got signal 6

Noroxi assessment

Priority: Monitor (action score 31/100)

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: 2.2% (FIRST EPSS); higher than 82.8% 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: galera (AlmaLinux:8) 26.4.14-1.module_el8.8.0+3620+5d452900; Judy (AlmaLinux:8) 1.0.5-18.module_el8.6.0+3072+3c630e87, 1.0.5-18.module_el8.6.0+3139+3c630e87; mariadb (AlmaLinux:8) 3:10.5.22-1.module_el8.8.0+3620+5d452900.

Low priority for now. Upgrade to galera (AlmaLinux:8) 26.4.14-1.module_el8.8.0+3620+5d452900; Judy (AlmaLinux:8) 1.0.5-18.module_el8.6.0+3072+3c630e87, 1.0.5-18.module_el8.6.0+3139+3c630e87; mariadb (AlmaLinux:8) 3:10.5.22-1.module_el8.8.0+3620+5d452900 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

A vulnerability was found in MariaDB. An OpenVAS port scan on ports 3306 and 4567 allows a malicious remote client to cause a denial of service.

HighCVSS 7.5 · v3.1—No exploit Fix available

Published: Sep 27, 2023
Updated: Jun 17, 2026
EPSS: 2.2% · 82th percentile
CWE: CWE-400

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.2%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.5
CNA · redhat: 7.5; agree

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.

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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.

Vendor	Product	CPE
mariadb	mariadb	cpe:2.3:a:mariadb:mariadb
fedoraproject	fedora	cpe:2.3:o:fedoraproject:fedora
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux
redhat	enterprise linux eus	cpe:2.3:o:redhat:enterprise_linux_eus
redhat	enterprise linux for arm 64	cpe:2.3:o:redhat:enterprise_linux_for_arm_64
redhat	enterprise linux for arm 64 eus	cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus
redhat	enterprise linux for ibm z systems	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems
redhat	enterprise linux for ibm z systems eus	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus
redhat	enterprise linux for power little endian	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian
redhat	enterprise linux for power little endian eus	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus
redhat	enterprise linux server aus	cpe:2.3:o:redhat:enterprise_linux_server_aus
redhat	enterprise linux server tus	cpe:2.3:o:redhat:enterprise_linux_server_tus

Affected versions

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

fedoraproject fedora38
mariadb mariadb10.4.0 and later · before 10.4.26
mariadb mariadb10.5.0 and later · before 10.5.17
mariadb mariadb10.6.0 and later · before 10.6.9
mariadb mariadb10.7.0 and later · before 10.7.5
mariadb mariadb10.8.0 and later · before 10.8.4
mariadb mariadbbefore 10.3.36
redhat enterprise linux8.0
redhat enterprise linux9.0
redhat enterprise linux eus8.6
redhat enterprise linux eus8.8
redhat enterprise linux eus9.0
redhat enterprise linux eus9.2
redhat enterprise linux for arm 648.0_aarch64
redhat enterprise linux for arm 649.0_aarch64
redhat enterprise linux for arm 64 eus8.8_aarch64
redhat enterprise linux for ibm z systems8.0_s390x
redhat enterprise linux for ibm z systems9.0_s390x
redhat enterprise linux for ibm z systems9.2_s390x
redhat enterprise linux for ibm z systems eus8.6_s390x

Versions reported by the vendor

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

Red Hat Red Hat Enterprise Linux 7
- all versionsunknown
Red Hat Red Hat Enterprise Linux 8
- 8080020230814130040.63b34585 and laternot affected · rpm
- 8080020231003163755.63b34585 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- 8040020231006044227.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
- 8040020231006044227.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
- 8040020231006044227.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
- 8060020231005052631.ad008a3a and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 9
- 0:26.4.14-1.el9_2 and laternot affected · rpm
- 3:10.5.22-1.el9_2 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support
- 0:26.4.14-1.el9_0 and laternot affected · rpm
- 3:10.5.22-1.el9_0 and laternot affected · rpm
Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7
- 0:26.4.14-1.el7 and laternot affected · rpm
- 3:10.5.22-1.el7 and laternot affected · rpm

Package-level exposure

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

+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 "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-2022-38791Aug 27, 2022 · In MariaDB before 10.9.2, compress_write in extra/mariabackup/ds_compress.cc does not release data_mutex upon a stream write failure, which
22Monitor
← EarlierCVE-2022-47015Jan 20, 2023 · MariaDB Server before 10.3.34 thru 10.9.3 is vulnerable to Denial of Service.
26Monitor
Later →CVE-2023-39593Oct 17, 2024 · Insecure permissions in the sys_exec function of MariaDB v10.5 allows authenticated attackers to execute arbitrary commands with elevated pr
22Monitor

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:galera	26.4.14-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:Judy	1.0.5-18.module_el8.6.0+3139+3c630e87 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-backup	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-common	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-devel	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-embedded	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-embedded-devel	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-errmsg	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-gssapi-server	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-oqgraph-engine	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
almalinux:mariadb-pam	3:10.5.22-1.module_el8.8.0+3620+5d452900 · AlmaLinux:8	Package registry (OSV)
debian:galera-4	26.4.13-1 · Debian:12	Package registry (OSV)
red hat:galera	0:25.3.37-1.module+el8.8.0+19444+aac3c36b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:galera-debuginfo	0:25.3.37-1.module+el8.8.0+19444+aac3c36b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:galera-debugsource	0:25.3.37-1.module+el8.8.0+19444+aac3c36b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:Judy	0:1.0.5-18.module+el8+2765+cfa4f87b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:Judy-debuginfo	0:1.0.5-18.module+el8+2765+cfa4f87b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:Judy-debugsource	0:1.0.5-18.module+el8+2765+cfa4f87b · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb-backup	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb-backup-debuginfo	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb-common	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb-debuginfo	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
red hat:mariadb-debugsource	3:10.3.39-1.module+el8.8.0+19673+72b0d35f · Red Hat:enterprise_linux:8::appstream	Package registry (OSV)
rocky linux:galera	0:25.3.37-1.module+el8.8.0+1452+2a7eab68 · Rocky Linux:8	Package registry (OSV)
rocky linux:Judy	0:1.0.5-18.module+el8.4.0+427+adf35707 · Rocky Linux:8	Package registry (OSV)
rocky linux:mariadb	3:10.3.39-1.module+el8.8.0+1452+2a7eab68 · Rocky Linux:8	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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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

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: none
Integrity: none
Availability: high · the service can be disrupted

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

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-primary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

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

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
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

Endpoint Denial of ServiceT1499

Change log

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

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

References

access.redhat.com/errata/RHSA-2023:5259

Show all references (8 more)

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

All records

Ecosystem	Package	Affected range	Fix
AlmaLinux:8	galera	before 26.4.14-1.module_el8.8.0+3620+5d452900	26.4.14-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	Judy	before 1.0.5-18.module_el8.6.0+3072+3c630e87	1.0.5-18.module_el8.6.0+3072+3c630e87
AlmaLinux:8	Judy	before 1.0.5-18.module_el8.6.0+3139+3c630e87	1.0.5-18.module_el8.6.0+3139+3c630e87
AlmaLinux:8	mariadb	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-backup	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-common	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-devel	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-embedded	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-embedded-devel	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-errmsg	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-gssapi-server	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-oqgraph-engine	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-pam	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-server	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-server-galera	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-server-utils	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:8	mariadb-test	before 3:10.5.22-1.module_el8.8.0+3620+5d452900	3:10.5.22-1.module_el8.8.0+3620+5d452900
AlmaLinux:9	galera	before 26.4.14-1.el9_2.alma.1	26.4.14-1.el9_2.alma.1
AlmaLinux:9	mariadb	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1
AlmaLinux:9	mariadb-backup	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1
AlmaLinux:9	mariadb-common	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1
AlmaLinux:9	mariadb-devel	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1
AlmaLinux:9	mariadb-embedded	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1
AlmaLinux:9	mariadb-embedded-devel	before 3:10.5.22-1.el9_2.alma.1	3:10.5.22-1.el9_2.alma.1