What is CVE-2017-7720?

CVE-2017-7720 is a high-severity vulnerability in Privatetunnel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-04-26.

How severe is CVE-2017-7720?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Privatetunnel

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.

Vulnerability class: Buffer Overflow

Published 2017-04-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.7th percentile), scored 2026-10-06.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Privatetunnel — versions 2.7, 2.8

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.exploit-db.com/exploits/41916/ (VDB Entry, Third Party Advisory, exploit)

Frequently asked questions

What is CVE-2017-7720?: CVE-2017-7720 is a high-severity vulnerability in Privatetunnel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-04-26.
How severe is CVE-2017-7720?: High severity. CVSS v3 base score is 7.8 out of 10.