How severe is CVE-2017-7720?

CVE-2017-7720 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-2017-7720 being actively exploited?

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

What products are affected by CVE-2017-7720?

CVE-2017-7720 primarily affects Privatetunnel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-7720?

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-2017-7720 published?

CVE-2017-7720 was published on 2017-04-26 and last updated on 2026-06-17.

CVE-2017-7720

CVE-2017-7720 is a high-severity vulnerability in Privatetunnel 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Privatetunnel
Published: 2017-04-26
Last modified: 2026-06-17

Description

Buffer overflow in PrivateTunnel 2.7 and 2.8 allows local attackers to cause a denial of service (SEH overwrite) or possibly have unspecified other impact via a long password.

Frequently asked questions

What is CVE-2017-7720?: Buffer overflow in PrivateTunnel 2.7 and 2.8 allows local attackers to cause a denial of service (SEH overwrite) or possibly have unspecified other impact via a long password.
How severe is CVE-2017-7720?: CVE-2017-7720 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-2017-7720 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-7720?: CVE-2017-7720 primarily affects Privatetunnel. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-7720?: 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-2017-7720 published?: CVE-2017-7720 was published on 2017-04-26 and last updated on 2026-06-17.

References

https://www.exploit-db.com/exploits/41916/

Affected products (2)

cpe:2.3:a:privatetunnel:privatetunnel:2.7:*:*:*:*:*:*:*
cpe:2.3:a:privatetunnel:privatetunnel:2.8:*:*:*:*:*:*:*

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