CVE-2018-12543: eclipse mosquitto Reachable Assertion
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2018-12543
Published 15-11-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-12543 is a high (CVSS 7.5) Reachable Assertion vulnerability in eclipse mosquitto. EPSS estimates a 36.01% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
36.01%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Eclipse Mosquitto versions 1.5 to 1.5.2 inclusive, if a message is published to Mosquitto that has a topic starting with $, but that is not $SYS, e.g. $test/test, then an assert is triggered that should otherwise not be reachable and Mosquitto will exit.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
36.01%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 36.01% on 18-09-2026
18-09-202618-10-2026
EPSS score36.01%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-617Reachable AssertionThe product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Alpine1 product
- mosquitto≥ 1.5.0, < 1.5.3-r0
Eclipse1 product
- mosquitto≥ 1.5.0, ≤ 1.5.2
The eclipse foundation1 product
- eclipse mosquitto≥ 1.5, < unspecified | ≥ unspecified, ≤ 1.5.2
3 vendors · 3 products