CVE-2026-44640

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.6% of scored records. A rank, not a probability.

NVD base score

4.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

NVD analysis status

Deferred. NVD last modified this record on 2026-07-22.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-05-29 19:28Z5 MO AGO

Last updated

2026-05-29 21:36Z5 MO AGO

Reserved

2026-05-07

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 4.5)

CNA CVSS vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Weaknesses

• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.2

Document digest

4688e256b24647daa7c550dc0179f24fbcee6d80dad9d34c55a5981b73167bdf

• github.comhttps://github.com/nanomq/nanomq/security/advisories/GHSA-9fgw-v323-jmjjx_refsource_CONFIRM
• github.comhttps://github.com/nanomq/nanomq/releases/tag/0.24.14x_refsource_MISC