CVE-2021-30290

Local Graphics failure via timeline-fence race

Published Sep 9, 2021 · Updated Aug 3, 2024

NULL pointer dereference in Qualcomm Snapdragon products allows local users to trigger a Graphics failure through a timeline-fence race. The Graphics timeline-fence lifecycle can destroy a fence while a concurrent signal path still dereferences it. Local reachability requires no user interaction under Qualcomm's assessment, but public sources do not specify whether exploitation causes a process crash, device reboot, or broader compromise.

CVSS severity8.4
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Qualcomm Snapdragon products allows local users to trigger a Graphics failure through a timeline-fence race. The Graphics timeline-fence lifecycle can destroy a fence while a concurrent signal path still dereferences it. Local reachability requires no user interaction under Qualcomm's assessment, but public sources do not specify whether exploitation causes a process crash, device reboot, or broader compromise.

The record

CVE
CVE-2021-30290
Published
Sep 9, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, CWE-367
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.4QualcommCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
CWE-367Time-of-check Time-of-use Race Condition

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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