What is CVE-2021-41036?

CVE-2021-41036 is a critical-severity vulnerability in Eclipse Paho Mqtt C\/c\+\+ Client, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-11-03.

How severe is CVE-2021-41036?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Eclipse Paho Mqtt C\/c\+\+ Client

CVE-2021-41036

In versions prior to 1.1 of the Eclipse Paho MQTT C Client, the client does not check rem_len size in readpacket.

Vulnerability class: Buffer Overflow

EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Eclipse Paho_mqtt_c\/c\+\+_client
The Eclipse Foundation Paho Mqtt C Client — versions unspecified

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

emo@eclipse.org (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-41036?: CVE-2021-41036 is a critical-severity vulnerability in Eclipse Paho Mqtt C\/c\+\+ Client, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2021-11-03.
How severe is CVE-2021-41036?: Critical severity. CVSS v3 base score is 9.8 out of 10.