What is CVE-2020-28759?

CVE-2020-28759 is a medium-severity vulnerability in Tengine Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2020-12-26.

How severe is CVE-2020-28759?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Tengine Project

CVE-2020-28759

The serializer module in OAID Tengine lite-v1.0 has a Buffer Overflow and crash. NOTE: another person has stated "I don't think there is an proof of overflow so far.

Vulnerability class: Buffer Overflow

Published 2020-12-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

Tengine Project — versions 1.0

Weakness classification (CWE)

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

References

github.com/OAID/Tengine/issues/476 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28759?: CVE-2020-28759 is a medium-severity vulnerability in Tengine Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2020-12-26.
How severe is CVE-2020-28759?: Medium severity. CVSS v3 base score is 5.5 out of 10.