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01 Record

CVE-2020-10070

MQTT buffer overflow on receive buffer

CriticalPUBLISHEDCNA: zephyr
CNA base score9.0 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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02 Description

MQTT buffer overflow on receive buffer

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
2.87% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 86.6% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
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.

04 Metadata

Published
2020-06-05 17:37Z6 YR AGO
Last updated
2024-09-16 23:06Z2 YR AGO
Reserved
2020-03-04
Assigning CNA
zephyr
Record state
PUBLISHED
Severity
Critical (CVSS 9.0)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weaknesses
  • CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
  • CWE-190Integer Overflow or WraparoundBase
Data version
5.1
Document digest
b5c2edaa69245c7a5255c919e46a630b575da05f95014a46d5c79d5a6b48d805

05 Affected products

VendorProductVersionsPlatforms
zephyrproject-rtoszephyr2.2.0 to < unspecified—

06 References