How severe is CVE-2026-66152?

CVE-2026-66152 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-66152 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-66152?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-66152 published?

CVE-2026-66152 was published on 2026-08-25 and last updated on 2026-08-31.

CVE-2026-66152

CVE-2026-66152 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-29.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-29
Published: 2026-08-25
Last modified: 2026-08-31

Description

A Path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component allows an attacker to write arbitrary file as root.

Frequently asked questions

What is CVE-2026-66152?: A Path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component allows an attacker to write arbitrary file as root.
How severe is CVE-2026-66152?: CVE-2026-66152 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-66152 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-66152?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-66152 published?: CVE-2026-66152 was published on 2026-08-25 and last updated on 2026-08-31.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0013

Other CWE-29 vulnerabilities

CVE-2025-15036 — Critical (CVSS 10.0): A path traversal vulnerability exists in the `extract_archive_to_dir` function within the…
CVE-2024-2083 — Critical (CVSS 9.9): A directory traversal vulnerability exists in the zenml-io/zenml repository, specifically within the /api/v1/steps…
CVE-2024-6396 — Critical (CVSS 9.8): A vulnerability in the `_backup_run` function in aimhubio/aim version 3.19.3 allows remote attackers to overwrite any…
CVE-2024-5443 — Critical (CVSS 9.8): CVE-2024-4320 describes a vulnerability in the parisneo/lollms software, specifically within the…
CVE-2024-2358 — Critical (CVSS 9.8): A path traversal vulnerability in the '/apply_settings' endpoint of parisneo/lollms-webui allows attackers to execute…
CVE-2023-6975 — Critical (CVSS 9.8): A malicious user could use this issue to get command execution on the vulnerable machine and get access to data &…

Browse all CWE-29 vulnerabilities →