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CVE-2021-44269

21
FAUCET Score

CVE-2021-44269 is an out-of-bounds read vulnerability in Wavpack 5.4.0, specifically impacting the processing of WAV files, including those in Fedora Project distributions. This flaw, rated Medium severity (CVSS 5.5), could lead to a denial of service due to an attacker crafting a malicious WAV file that, when processed, causes the WavpackPackSamples function to read beyond allocated memory. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.4.0CPE matchmatch criteria
cpe:2.3:a:wavpack:wavpack:5.4.0:*:*:*:*:*:*:*
34CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
36CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

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
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 74th percentile among its peer group of 5,765 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

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19469-16823Fixed in: 5.6.0-1
microsoftpatch availablevia msrc
Product: cbl2 wavpack 5.6.0-1 on CBL Mariner 2.0Fixed in: 5.6.0-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: wavpack-0:5.1.0-16.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: wavpack-0:5.4.0-5.el9
View patch

Vendor Advisories (2)

microsoft2022-Mar/CVE-2021-44269Moderate

An out of bounds read was found in Wavpack 5.4.0 in processing *.WAV files. This issue triggered in function WavpackPackSamples of file src/pack_utils.c tainted variable cnt is too large that makes pointer sptr read beyond heap bound.

Mar 8, 2022
redhatCVE-2021-44269Low

wavpack: Heap out-of-bounds read in WavpackPackSamples()

Nov 23, 2021

References

github.com / dbry/WavPack/issues/110
ExploitPatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/2CZUFTX3J4Y4OSRITG4PXCI7NRVFDYVQ
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/A5B7L26LA6KGX7YH6SWD5CSBNWKV5MBO
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/CRZWZKEEABCLVXZEXQZBIT3ZKLIXVFF5
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/I54NXQZELBF42OL4KQZJJRAYZX7IPZXP
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/SQKOOJRI2VAPYS3652HVDXON723HTXBP