What is CVE-2020-19490?

CVE-2020-19490 is a medium-severity vulnerability in Tinyexr Project, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-07-21.

How severe is CVE-2020-19490?

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

Integer overflow in Tinyexr Project

CVE-2020-19490

tinyexr 0.9.5 has a integer overflow over-write in tinyexr::DecodePixelData in tinyexr.h, related to OpenEXR code.

Vulnerability class: Integer Overflow

Published 2021-07-21 · 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: 0.008 (55.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Tinyexr Project — versions 0.9.5

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

github.com/syoyo/tinyexr/issues/124 (Exploit, Third Party Advisory)
github.com/syoyo/tinyexr/commit/a685e3332f61cd4e59324bf3f669d36973d64270 (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19490?: CVE-2020-19490 is a medium-severity vulnerability in Tinyexr Project, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2021-07-21.
How severe is CVE-2020-19490?: Medium severity. CVSS v3 base score is 5.5 out of 10.