Insecure permissions in Linksys Velop WiFi 5 (WHW01v1) 1.1.13.202617 allows attackers to escalate privileges from Guest to root.

published 2024-06-11 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-36223

cvss: 8.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.9%; EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits: 0; none known

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: total
Assessed: 2 y ago (2024-07-19)

Exploit prediction

2.90% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/IvanGlinkin/CVE-2024-36821 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	6.8	CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

linksys whw01v1_firmware

Classification

Weakness

CWE-379 Creation of Temporary File in Directory with Insecure Permissions
CWE-732 Incorrect Permission Assignment for Critical Resource

References

github.com /IvanGlinkin/CVE-2024-36821
exploit, third-party-advisory
downloads.linksys.com /support/assets/releasenotes/WHW01_VLP01_1.1.13.202617_Customer_Release_Notes.txt
release-notes

Sources

CVE List CVE-2024-36821
NVD CVE-2024-36821

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary