CVE-2018-20196

Name: CVE-2018-20196
Creator: NVD / NIST
Published: 2018-12-18T01:29:00.377+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.28%

Last modified Jun 17, 2026

CVE-2018-20196 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. There is a stack-based buffer overflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because the S_M array is mishandled.. EPSS estimates a 1.28% chance of exploitation in the next 30 days.

Description

There is a stack-based buffer overflow in the third instance of the calculate_gain function in libfaad/sbr_hfadj.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. A crafted input will lead to a denial of service or possibly unspecified other impact because the S_M array is mishandled.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

1.28%

66.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Audiocoding	Freeware Advanced Audio Decoder 2	2.8.8
Debian	Debian Linux	8.0
Debian	Debian Linux	10.0

References

https://github.com/knik0/faad2/issues/19Exploit, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00033.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202006-17Third Party Advisory
https://www.debian.org/security/2022/dsa-5109Third Party Advisory
https://github.com/knik0/faad2/issues/19Exploit, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00033.htmlMailing List, Third Party Advisory
https://security.gentoo.org/glsa/202006-17Third Party Advisory
https://www.debian.org/security/2022/dsa-5109Third Party Advisory

Timeline

Published: Dec 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-20196?

How severe is CVE-2018-20196?

CVE-2018-20196 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.28% probability of exploitation in the next 30 days.

How do I fix CVE-2018-20196?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-20196?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST