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Vulnerability record · CVE-2018-3847 · published 1 August 2018

CVE-2018-3847: Nasa cfitsio out-of-bounds write vulnerability

NNasa · Cfitsio

Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 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 2.8% · top 13.9% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 6.8
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Multiple exploitable buffer overflow vulnerabilities exist in image parsing functionality of the CFITSIO library version 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.

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

Affected products

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

References

LinkTags
https://security.gentoo.org/glsa/202101-24 Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530 ExploitThird Party Advisory
https://security.gentoo.org/glsa/202101-24 Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0530 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-3847), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.