What is CVE-2018-8726?

CVE-2018-8726 is a high-severity vulnerability in K7computing Antivrius, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2021-01-11.

How severe is CVE-2018-8726?

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

Is CVE-2018-8726 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in K7computing Antivrius

CVE-2018-8726

K7Computing Pvt Ltd K7Antivirus Premium 15.1.0.53 is affected by: Buffer Overflow. The impact is: execute arbitrary code (local). The component is: K7TSMngr.exe.

Vulnerability class: Buffer Overflow

Published 2021-01-11 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.1% 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

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

References

af854a3a-2127-422b-91ae-364da2661108 (Product)
af854a3a-2127-422b-91ae-364da2661108 (Product)
support.k7computing.com/index.php (Vendor Advisory)

Frequently asked questions

What is CVE-2018-8726?: CVE-2018-8726 is a high-severity vulnerability in K7computing Antivrius, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2021-01-11.
How severe is CVE-2018-8726?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-8726 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.