What is CVE-2020-29384?

CVE-2020-29384 is a medium-severity vulnerability in Advsys Pngout, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2020-11-30.

How severe is CVE-2020-29384?

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

Integer overflow in Advsys Pngout

CVE-2020-29384

An issue was discovered in PNGOUT 2020-01-15. When compressing a crafted PNG file, it encounters an integer overflow.

Vulnerability class: Integer Overflow

Published 2020-11-30 · 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: 0.011 (63.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Advsys Pngout — versions 2020-01-15
Apple macOS
Linux Kernel

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

gist.github.com/mmmdzz/03df5177afd04b32ac190eb7907f3834 (Exploit, Third Party Advisory)
www.jonof.id.au/kenutils.html (Third Party Advisory)
advsys.net/ken/utils.htm (Third Party Advisory)

Frequently asked questions

What is CVE-2020-29384?: CVE-2020-29384 is a medium-severity vulnerability in Advsys Pngout, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2020-11-30.
How severe is CVE-2020-29384?: Medium severity. CVSS v3 base score is 5.5 out of 10.