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CVE-2017-9871

24
FAUCET Score

CVE-2017-9871 describes a stack-based buffer overflow in the III_i_stereo function of mpglib, specifically affecting LAME 3.99.5 and other products utilizing libmpgdecoder.a. This vulnerability carries a CVSS v3 score of 7.8 (High) due to its potential for a denial of service (application crash) and possibly other unspecified impacts, triggered by a crafted audio file requiring user interaction. Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
3.99.5CPE matchmatch criteria
cpe:2.3:a:lame_project:lame:3.99.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.50%
Probability of exploitation in next 30 days
EPSS Percentile
71.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0150 is in the 70th percentile among its peer group of 11,615 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2017-9871Low

lame: stack-based buffer overflow the III_i_stereo in layer3.c in mpglib

Jun 25, 2017

References

blogs.gentoo.org / ago/2017/06/17/lame-stack-based-buffer-overflow-in-iii_i_stereo-layer3-c
Third Party AdvisoryVDB Entry
securityfocus.com / bid/99289