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Vulnerability record · CVE-2017-9473 · published 7 June 2017

CVE-2017-9473: Ytnef project ytnef vulnerability

YYtnef Project · Ytnef

In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.

5.5 CVSS 3.0 Medium EPSS 1.2% · top 33.0%
5.5CVSS 3.0 base score, v2 4.3
1.2%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

In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

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

References

LinkTags
https://blogs.gentoo.org/ago/2017/05/24/ytnef-memory-allocation-failure-in-tneffillmapi-ytnef-c/ ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQ
https://usn.ubuntu.com/3667-1/ Third Party Advisory
https://blogs.gentoo.org/ago/2017/05/24/ytnef-memory-allocation-failure-in-tneffillmapi-ytnef-c/ ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQ
https://usn.ubuntu.com/3667-1/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-9473), CISA KEV, FIRST EPSS (scores of 2026-10-08). This page is refreshed as NVD updates the record.