Is CVE-2024-10525 in the CISA KEV catalog?

No. CVE-2024-10525 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-10525?

CVE-2024-10525 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-10525?

CVE-2024-10525 has an EPSS score of 57.90% (99th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-10525?

Upgrade mosquitto on debian 11 to 2.0.11-1+deb11u2 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2024-10525

CRITICALEPSS 99th pctl

9.8

CVSS v3

NVD

Description

In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosquitto_sub and mosquitto_rr clients.

CWE-122Heap-based Buffer Overflow CWE-787Out-of-bounds Write

How to fix

Remediation Available

mosquittoDebian

Fixed in:2.0.11-1+deb11u2CVE-2024-10525

Fixed in:2.0.11-1.2+deb12u2CVE-2024-10525

Fixed in:2.0.20-1CVE-2024-10525

libmosquitto0Ubuntu

Fixed in:0.15-2+deb7u3ubuntu0.1+esm1USN-7441-1

libmosquitto1Ubuntu

Fixed in:1.4.8-1ubuntu0.16.04.7+esm2USN-7441-1

Fixed in:1.4.15-2ubuntu0.18.04.3+esm2USN-7441-1

Fixed in:1.6.9-1ubuntu0.1~esm2USN-7441-1

Fixed in:2.0.11-1ubuntu1.2USN-7441-1

Fixed in:2.0.18-1ubuntu0.1~esm1USN-7441-1

libmosquittopp0Ubuntu

Fixed in:0.15-2+deb7u3ubuntu0.1+esm1USN-7441-1

libmosquittopp1Ubuntu

Fixed in:1.4.8-1ubuntu0.16.04.7+esm2USN-7441-1

Fixed in:1.4.15-2ubuntu0.18.04.3+esm2USN-7441-1

Fixed in:1.6.9-1ubuntu0.1~esm2USN-7441-1

Fixed in:2.0.11-1ubuntu1.2USN-7441-1

Fixed in:2.0.18-1ubuntu0.1~esm1USN-7441-1

mosquittoUbuntu

Fixed in:0.15-2+deb7u3ubuntu0.1+esm1USN-7441-1

Fixed in:1.4.8-1ubuntu0.16.04.7+esm2USN-7441-1

Fixed in:1.4.15-2ubuntu0.18.04.3+esm2USN-7441-1

Fixed in:1.6.9-1ubuntu0.1~esm2USN-7441-1

Fixed in:2.0.11-1ubuntu1.2USN-7441-1

Fixed in:2.0.18-1ubuntu0.1~esm1USN-7441-1

mosquitto-clientsUbuntu

Fixed in:0.15-2+deb7u3ubuntu0.1+esm1USN-7441-1

Fixed in:1.4.8-1ubuntu0.16.04.7+esm2USN-7441-1

Fixed in:1.4.15-2ubuntu0.18.04.3+esm2USN-7441-1

Fixed in:1.6.9-1ubuntu0.1~esm2USN-7441-1

Fixed in:2.0.11-1ubuntu1.2USN-7441-1

Fixed in:2.0.18-1ubuntu0.1~esm1USN-7441-1

python-mosquittoUbuntu

Fixed in:0.15-2+deb7u3ubuntu0.1+esm1USN-7441-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

57.90%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Patch1

github.com

Exploit1

gitlab.eclipse.org

Release Notes1

mosquitto.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	87%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.