SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-5917

azure-umqtt-c (available through GitHub prior to 2017 October 6) allows remote attackers to cause a denial of service via unspecified vectors.

HIGH 7.5EPSS 21.4%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 21.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

azure-umqtt-c (available through GitHub prior to 2017 October 6) allows remote attackers to cause a denial of service via unspecified vectors.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
21.42% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
microsoft/azure-umqtt-c
Source
vultures@jpcert.or.jp
EPSS trend
0%13%25%21 September 2026: 20.19%22 September 2026: 21.42%26 October 2026: 21.42%21 September 202626 October 2026

EPSS moved from 20.2% on 21 September 2026 to 21.4% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.