Security readout for executives and security teams
Mosquitto brokers up to 1.4.15 accepted topic strings that were not valid UTF-8. A malicious MQTT client could use that broker behavior to make stricter clients disconnect themselves, causing service disruption for affected subscribers rather than broker takeover. Exposure is most likely where Mosquitto up to 1.4.15 accepts connections from untrusted or weakly controlled MQTT clients. IoT, telemetry, and message-broker deployments with mixed client implementations may be more affected because stricter clients can disconnect when receiving invalid strings. Treat this as a service-availability issue. Prioritize internet-facing, partner-facing, or shared MQTT brokers, especially in environments where device telemetry or operational monitoring depends on stable subscriptions. Mitigation focus: Apply relevant Mosquitto security updates from your operating system vendor.; If using Debian or Ubuntu packages, review the referenced DSA, DLA, or USN advisories.; For source or other distributions, check Eclipse Mosquitto guidance for the fixed release..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-7653 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113CVE reference · x_refsource_CONFIRM
- [debian-lts-announce] 20180928 [SECURITY] [DLA 1525-1] mosquitto security updateCVE reference · mailing-list, x_refsource_MLIST
- DSA-4325CVE reference · vendor-advisory, x_refsource_DEBIAN
- USN-4023-1CVE reference · vendor-advisory, x_refsource_UBUNTU
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.