9.8

CVE-2020-10062: zephyrproject-rtos zephyr Off-by-one Error

CVSS: 9.8v3.1CriticalModified
Published 05-06-2020Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2020-10062 is a critical (CVSS 9.8) Off-by-one Error vulnerability in zephyrproject-rtos zephyr. EPSS estimates a 2.88% chance of exploitation in the next 30 days, higher than 86.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.88%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-06-2020
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

An off-by-one error in the Zephyr project MQTT packet length decoder can result in memory corruption and possible remote code execution. NCC-ZEP-031 This issue affects: zephyrproject-rtos zephyr version 2.2.0 and later versions.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

2.88%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 2.88% on 20-09-2026

20-09-202620-10-2026
EPSS score
2.88%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Zephyrproject1 product
Zephyrproject-rtos1 product
  • zephyr≥ 2.2.0, < unspecified

2 vendors · 2 products

References

4 links