Vulnerability record · CVE-2018-3849 · published 16 April 2018

CVE-2018-3849: Nasa cfitsio out-of-bounds write vulnerability

NNasa · Cfitsio

In the ffghtb function in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.

8.8 CVSS 3.1 High EPSS 3.6% · top 10.8% CWE-787 · Out-of-bounds write

8.8CVSS 3.1 base score, v2 6.8

3.6%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

6References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Fedora Fedoraproject NCfitsio Nasa

References

Link	Tags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K46I2MFPCEOGC5LLDXZSWPB
https://security.gentoo.org/glsa/202101-24	Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0531	ExploitTechnical DescriptionThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K46I2MFPCEOGC5LLDXZSWPB
https://security.gentoo.org/glsa/202101-24	Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0531	ExploitTechnical DescriptionThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-3849), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.