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CVE-2021-34403

25
FAUCET Score

CVE-2021-34403 is a use-after-free vulnerability in the nvmap ioctl within NVIDIA Linux distributions, affecting Google Android and NVIDIA Shield Experience products. With a CVSS score of 7.8 (High), it allows a local attacker to achieve code privilege escalation, compromise confidentiality and integrity, or cause denial of service with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat landscape.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0CPE matchmatch criteria
cpe:2.3:a:nvidia:shield_experience:*:*:*:*:*:*:*:*

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
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 59th percentile among its peer group of 16,994 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 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2021-34403Moderate

kernel: NVIDIA Linux use after free in nvmap ioctl

Jan 18, 2022

References

nvidia.custhelp.com / app/answers/detail/a_id/5259
Vendor Advisory