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CVE-2018-19662

26
FAUCET Score

CVE-2018-19662 is a buffer over-read vulnerability in libsndfile version 1.0.28, specifically within the i2alaw_array function in alaw.c, affecting Debian and libsndfile projects. This flaw carries a high CVSS score of 8.1, indicating it can be exploited remotely with low complexity, requiring user interaction, and leading to a denial of service. Despite its severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, suggesting it is not currently a high-profile threat.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.28CPE matchmatch criteria
cpe:2.3:a:libsndfile_project:libsndfile:1.0.28:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 81st percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 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 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 16897-16820Fixed in: 1.0.31-1
microsoftpatch availablevia msrc
Product: cm1 libsndfile 1.0.31-1 on CBL Mariner 1.0Fixed in: 1.0.31-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 1.0.31-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 1.0.31-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libsndfile-0:1.0.25-12.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libsndfile-0:1.0.28-10.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: libsndfile

Vendor Advisories (3)

microsoft2021-Jan/CVE-2018-19662

CVE-2018-19662

Jan 12, 2021
redhatCVE-2018-19662Low

libsndfile: buffer over-read in the function i2alaw_array in alaw.c

Nov 27, 2018
microsoft2018-Nov/CVE-2018-19662Important

An issue was discovered in libsndfile 1.0.28. There is a buffer over-read in the function i2alaw_array in alaw.c that will lead to a denial of service.

Nov 13, 2018

References

github.com / erikd/libsndfile/issues/429
ExploitPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/12/msg00016.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/10/msg00030.html
usn.ubuntu.com / 4013-1