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CVE-2021-47653

20
FAUCET Score

CVE-2021-47653 is a use-after-free vulnerability in the Linux kernel's media: davinci: vpif driver, affecting Linux kernel versions. This flaw arises because platform device structures were not properly deregistered during driver unbind, leading to memory corruption. With a CVSS score of 7.8 (High), successful exploitation could lead to high confidentiality, integrity, and availability impacts, requiring local access and low privileges. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.13, < 5.15.54CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.16.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.17, < 5.17.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 53rd percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-47653Important

kernel: media: davinci: vpif: fix use-after-free on driver unbind

Feb 26, 2025

References

git.kernel.org / stable/c/43acb728bbc40169d2e2425e84a80068270974be
Patch
git.kernel.org / stable/c/6512c3c39cb6b573b791ce45365818a38b76afbe
Patch
git.kernel.org / stable/c/9ffc602e14d7b9f7e7cb2f67e18dfef9ef8af676
Patch
git.kernel.org / stable/c/b5a3bb7f6f164eb6ee74ef4898dcd019b2063448
Patch