6.5

CVE-2017-7650: debian debian_linux Improper Authentication

CVSS: 6.5v3.0MediumModified
AliasesALPINE-CVE-2017-7650UBUNTU-CVE-2017-7650DEBIAN-CVE-2017-7650
Published 11-09-2017Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2017-7650 is a medium (CVSS 6.5) Improper Authentication vulnerability in debian debian_linux. EPSS estimates a 2.47% chance of exploitation in the next 30 days, higher than 84.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
2.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 11-09-2017
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.47%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.47% on 18-09-2026

18-09-202618-10-2026
EPSS score
2.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.eclipse.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • mosquitto< 1.4.10-3 | < 1.3.4-2+deb8u1 | < 0.15-2+deb7u1
  • debian_linuxEOL8.0
Alpine1 product
  • mosquitto< 1.4.12-r0
Eclipse1 product
Eclipse foundation1 product
Ubuntu1 product
  • mosquitto< 0.15-2ubuntu1.1 | < 1.4.8-1ubuntu0.16.04.1

5 vendors · 6 products

References

8 links