How severe is CVE-2017-11321?

CVE-2017-11321 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-11321 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11321?

CVE-2017-11321 affects Ucopia Wireless Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11321?

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-2017-11321 published?

CVE-2017-11321 was published on 2017-10-03 and last updated on 2026-06-17.

CVE-2017-11321

CVE-2017-11321 is a high-severity vulnerability in Ucopia Wireless Appliance with a CVSS 3.x base score of 7.2. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Ucopia Wireless Appliance
Published: 2017-10-03
Last modified: 2026-06-17

Description

The restricted shell interface in UCOPIA Wireless Appliance before 5.1.8 allows remote authenticated users to gain 'admin' privileges via shell metacharacters in the less command.

Frequently asked questions

What is CVE-2017-11321?: The restricted shell interface in UCOPIA Wireless Appliance before 5.1.8 allows remote authenticated users to gain 'admin' privileges via shell metacharacters in the less command.
How severe is CVE-2017-11321?: CVE-2017-11321 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-11321 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11321?: CVE-2017-11321 affects Ucopia Wireless Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11321?: 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-2017-11321 published?: CVE-2017-11321 was published on 2017-10-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ucopia:wireless_appliance:*:*:*:*:*:*:*:*

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