8.1

CVE-2020-10021: zephyrproject-rtos zephyr Out-of-bounds Write

CVSS: 8.1v3.1HighModified
Published 11-05-2020Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2020-10021 is a high (CVSS 8.1) Out-of-bounds Write vulnerability in zephyrproject-rtos zephyr. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.1% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Duplicates 1
CVE-2020-10026

Timeline

  1. 11-05-2020
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

Out-of-bounds Write in the USB Mass Storage memoryWrite handler with unaligned Sizes See NCC-ZEP-024, NCC-ZEP-025, NCC-ZEP-026 This issue affects: zephyrproject-rtos zephyr version 1.14.1 and later versions. version 2.1.0 and later versions.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

34%

Versus all other CVEs

30-day change

0.00 pp

From 0.41% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.41%

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
  • zephyr≤ 1.14.1 | ≥ 2.1.0, < 2.2.0
Zephyrproject-rtos1 product
  • zephyr≥ 1.14.1, < unspecified | ≥ 2.1.0, < unspecified

2 vendors · 2 products

References

5 links