What is CVE-2019-16346?

CVE-2019-16346 is a high-severity vulnerability in Miniupnp Project Ngiflib, classified under Incorrect Calculation. CVSS score: 8.8/10. Published 2019-09-16.

How severe is CVE-2019-16346?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2019-16346 known to be exploited?

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

Buffer overflow in Miniupnp Project Ngiflib

CVE-2019-16346

ngiflib 0.4 has a heap-based buffer overflow in WritePixel() in ngiflib.c when called from DecodeGifImg, because deinterlacing for small pictures is mishandled.

Published 2019-09-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.016 (75.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Miniupnp Project Ngiflib — versions 0.4

Weakness classification (CWE)

Public proof-of-concept exploits

Marsman1996/pocs

References

github.com/miniupnp/ngiflib/issues/11 (Exploit, Third Party Advisory)
github.com/miniupnp/ngiflib/commit/37d939a6f511d16d4c95678025c235fe62e6417a (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16346?: CVE-2019-16346 is a high-severity vulnerability in Miniupnp Project Ngiflib, classified under Incorrect Calculation. CVSS score: 8.8/10. Published 2019-09-16.
How severe is CVE-2019-16346?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2019-16346 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.