ngiflib 0.4 has a heap-based buffer over-read in GifIndexToTrueColor in ngiflib.c.

published 2020-01-02 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10773

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.3%; EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits: 0; none known

Exploit prediction

1.29% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/miniupnp/ngiflib/issues/15 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

CWE-125 Out-of-bounds Read

References

github.com /miniupnp/ngiflib/issues/15
exploit, issue-tracking, third-party-advisory

Sources

CVE List CVE-2019-20219
NVD CVE-2019-20219

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary