What is CVE-2018-11657?

CVE-2018-11657 is a high-severity vulnerability in Miniupnp Project Ngiflib, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2018-06-01.

How severe is CVE-2018-11657?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-11657 known to be exploited?

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

Vulnerability in Miniupnp Project Ngiflib

CVE-2018-11657

ngiflib.c in MiniUPnP ngiflib 0.4 has an infinite loop in DecodeGifImg and LoadGif.

Published 2018-06-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.011 (63.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.2% 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

Miniupnp Project Ngiflib — versions 0.4

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

Public proof-of-concept exploits

Edward-L/my-cve-list

References

github.com/miniupnp/ngiflib/issues/7 (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-11657?: CVE-2018-11657 is a high-severity vulnerability in Miniupnp Project Ngiflib, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2018-06-01.
How severe is CVE-2018-11657?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-11657 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.