What is CVE-2018-18599?

CVE-2018-18599 is a high-severity vulnerability in Guardianproject Stegdetect, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2018-10-23.

How severe is CVE-2018-18599?

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

Buffer overflow in Guardianproject Stegdetect

CVE-2018-18599

Stegdetect through 2018-05-26 has an out-of-bounds write in f5_compress in the f5.c file.

Vulnerability class: Buffer Overflow

Published 2018-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (72.9th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Guardianproject Stegdetect

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/abeluck/stegdetect/issues/10 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18599?: CVE-2018-18599 is a high-severity vulnerability in Guardianproject Stegdetect, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2018-10-23.
How severe is CVE-2018-18599?: High severity. CVSS v3 base score is 8.8 out of 10.