Is CVE-2017-7652 in the CISA KEV catalog?

No. CVE-2017-7652 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-7652?

CVE-2017-7652 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-7652?

CVE-2017-7652 has an EPSS score of 1.68% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-7652?

Upgrade mosquitto on debian 11 to 1.4.15-1 or later.

CVE & CISA-KEV Catalog

CVE-2017-7652

HIGHEPSS 74th pctl

7.5

CVSS v3

NVD

Description

In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.

CWE-789

How to fix

Remediation Available

mosquittoDebian

Fixed in:1.4.15-1CVE-2017-7652

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.68%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch1

mosquitto.org

Third-Party Advisory4

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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 2024-11-21.