CVE-2018-19432 [Medium] | Denial of Service in Libsndfile

CVE-2018-19432 is rated High Exploit Risk (67.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.97%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

EDB-ID

Source

Kind

Published

Link

—

nvd_ref

exploit_tag

Exploit-DB ↗

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-21	1.06%	0.97%	-0.10%
2	2025-11-18	1.02%	1.06%	+0.04%
3	2025-05-10	—	1.02%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

1.06%

0.97%

-0.10%

2025-11-18

1.02%

1.06%

+0.04%

2025-05-10

—

1.02%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	3.0	MEDIUM	`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	3.6	[email protected]
4.3	2.0	MEDIUM	`AV:N/AC:M/Au:N/C:N/I:N/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:M) Exploitation needs some favorable conditions, but not exceptional ones. Authentication (AU:N) No authentication is required. Confidentiality impact (C:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:P) Partial availability impact.	8.6	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

3.0

MEDIUM

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

3.6

[email protected]

4.3

2.0

MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:M): Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:P): Partial availability impact.

8.6

2.9

[email protected]

OS Trackers for CVE-2018-19432

vendor	priority	summary	link
`alpine`	medium	CVE-2018-19432: 1 source package rows (libsndfile); 32 state rows across 7 repos (3.11-main, 3.12-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 32.	https://security.alpinelinux.org/vuln/CVE-2018-19432
`debian`	unimportant	CVE-2018-19432 unimportant priority: Debian including 1 source packages (libsndfile), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2018-19432
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2018-19432
`suse`	low	CVE-2018-19432 severity low: SUSE including 252 source package names (0.3.32-3.4:libsndfile1-1.0.28-5.12.1, 17:libsndfile1-1.0.28-5.12.1, …), 346 product×package rows across 69 product lines (Container containers/milvus, Container containers/open-webui, … (69 product lines)): Known Affected 231, Fixed 115.	https://www.suse.com/security/cve/CVE-2018-19432/
`ubuntu`	low	CVE-2018-19432 low priority: Ubuntu including 1 source packages (libsndfile), 9 status rows across 9 suites (bionic, cosmic, disco, eoan, focal, groovy, trusty, upstream, xenial): not-affected 4, released 4, needs-triage 1.	https://ubuntu.com/security/CVE-2018-19432

Affected software / configurations for CVE-2018-19432

Vendor	Product	Version	Raw CPE
libsndfile_project	libsndfile	1.0.28	cpe:2.3:a:libsndfile_project:libsndfile:1.0.28:::::::*
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*

References for CVE-2018-19432

URL	Tags
http://www.securityfocus.com/bid/105996	Third Party Advisory VDB Entry
https://github.com/erikd/libsndfile/issues/427	Exploit Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00016.html	Mailing List Third Party Advisory
https://usn.ubuntu.com/4013-1/

URL

CVE-2018-19432

Public exploit references (Exploit-DB) for CVE-2018-19432

Exploit prediction scoring system (EPSS) score for CVE-2018-19432

Common vulnerability scoring system (CVSS) metrics for CVE-2018-19432

Weakness enumeration for CVE-2018-19432

OS Trackers for CVE-2018-19432

Affected software / configurations for CVE-2018-19432

References for CVE-2018-19432