How severe is CVE-2022-22281?

CVE-2022-22281 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-22281 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-22281?

CVE-2022-22281 affects Sonicwall Netextender. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-22281?

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-2022-22281 published?

CVE-2022-22281 was published on 2022-05-13 and last updated on 2026-06-17.

CVE-2022-22281

CVE-2022-22281 is a high-severity vulnerability in Sonicwall Netextender with a CVSS 3.x base score of 7.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Sonicwall Netextender
Published: 2022-05-13
Last modified: 2026-06-17

Description

A buffer overflow vulnerability in the SonicWall SSL-VPN NetExtender Windows Client (32 and 64 bit) in 10.2.322 and earlier versions, allows an attacker to potentially execute arbitrary code in the host windows operating system.

Frequently asked questions

What is CVE-2022-22281?: A buffer overflow vulnerability in the SonicWall SSL-VPN NetExtender Windows Client (32 and 64 bit) in 10.2.322 and earlier versions, allows an attacker to potentially execute arbitrary code in the host windows operating system.
How severe is CVE-2022-22281?: CVE-2022-22281 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-22281 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-22281?: CVE-2022-22281 affects Sonicwall Netextender. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-22281?: 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-2022-22281 published?: CVE-2022-22281 was published on 2022-05-13 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0008

Affected products (1)

cpe:2.3:a:sonicwall:netextender:*:*:*:*:*:windows:*:*

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