9.1

CVE-2025-1675: zephyrproject-rtos zephyr Out-of-bounds Read

CVSS: 9.1v3.1CriticalAnalyzed
Published 25-02-2025Last modified 13-10-2026
Open JSON

Vulnerability summary

CVE-2025-1675 is a critical (CVSS 9.1) Out-of-bounds Read vulnerability in zephyrproject-rtos zephyr. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (NVD)
EPSS score
0.39%
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. 25-02-2025
    PublishedVulnerability first disclosed.
  2. 13-10-2026
    Last modifiedVulnerability information updated.

Description

The function dns_copy_qname in dns_pack.c performs performs a memcpy operation with an untrusted field and does not check if the source buffer is large enough to contain the copied data.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.39%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.39% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.39%

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< 3.7.2 | ≥ 4.0.0, < 4.1.0

2 vendors · 2 products

References

1 links