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CVE-2018-20199

21
FAUCET Score

CVE-2018-20199 is a NULL pointer dereference vulnerability in FAAD2 2.8.8, affecting audiocoding and Debian Linux distributions. This flaw, rated Medium severity (CVSS 5.5), can lead to a denial of service due to an application crash when processing malformed audio data. The attack requires user interaction (UI:R) and local access (AV:L), but has low attack complexity (AC:L). There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV listing, with minimal community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.9.0CPE matchmatch criteria
cpe:2.3:a:audiocoding:freeware_advanced_audio_decoder_2:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.13%
Probability of exploitation in next 30 days
EPSS Percentile
63.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0113 is in the 74th 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

Remediation records are not available for this CVE.

References

github.com / knik0/faad2/issues/24
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2019/08/msg00033.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2021/10/msg00020.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202006-17
Third Party Advisory
debian.org / security/2022/dsa-5109
Third Party Advisory