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CVE-2017-6299

18
FAUCET Score

CVE-2017-6299 describes an infinite loop vulnerability in ytnef versions prior to 1.9.1, specifically within the TNEFFillMapi function in lib/ytnef.c. This flaw, categorized as a Denial of Service (DoS), primarily impacts Debian Linux distributions and the ytnef project. With a CVSS v3.0 score of 5.5 (Medium), successful exploitation requires local access and user interaction (e.g., opening a malicious file), leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.9CPE matchmatch criteria
cpe:2.3:a:ytnef_project:ytnef:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 75th percentile among its peer group of 5,760 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / Yeraze/ytnef/pull/27
Issue TrackingPatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ
x41-dsec.de / lab/advisories/x41-2017-002-ytnef
PatchThird Party Advisory
debian.org / security/2017/dsa-3846
Third Party Advisory
openwall.com / lists/oss-security/2017/02/15/4
Mailing ListPatchThird Party Advisory
securityfocus.com / bid/96423
Third Party AdvisoryVDB Entry