What is CVE-2019-16887?

CVE-2019-16887 is a high-severity vulnerability in Irfanview, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2019-09-25.

How severe is CVE-2019-16887?

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

Buffer overflow in Irfanview

CVE-2019-16887

In IrfanView 4.53, Data from a Faulting Address controls a subsequent Write Address starting at image00400000+0x000000000001dcfc.

Vulnerability class: Buffer Overflow

Published 2019-09-25 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.019 (79.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Irfanview — versions 4.53

Weakness classification (CWE)

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

References

github.com/cribdragg3r/offensive_research/blob/master/bugs/irfanview/0x00000000… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16887?: CVE-2019-16887 is a high-severity vulnerability in Irfanview, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2019-09-25.
How severe is CVE-2019-16887?: High severity. CVSS v3 base score is 7.8 out of 10.