CVE-2012-4220

6.8 MEDIUM 3% exploit odds No fix listed

What it is

diagchar_core.c in the Qualcomm Innovation Center (QuIC) Diagnostics (aka DIAG) kernel-mode driver for Android 2.3 through 4.2 allows attackers to execute arbitrary code or cause a denial of service (incorrect pointer dereference) via an application that uses crafted arguments in a local diagchar_ioctl call.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 3.0% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2012-11-30 12:54 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:44 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 3.0% in the next 30 days (EPSS).
Severity: 6.8 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2012-11-30 12:54 UTC
Last modified: 2026-06-16 23:44 UTC
Exploit probability: 3.0% · EPSS, next 30 days
Record status: Modified

Affected

Google Android 2.3
Google Android 2.3.1
Google Android 2.3.2
Google Android 2.3.3
Google Android 2.3.4
Google Android 2.3.5
Google Android 2.3.6
Google Android 2.3.7

Attack profile CVSS 2.0 · 6.8

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Is it in your code?

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References

NVD record · CVE.org record