How severe is CVE-2009-1883?

CVE-2009-1883 has a CVSS 2.0 base score of 4.4, rated medium severity.

Is CVE-2009-1883 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1883?

CVE-2009-1883 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1883?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-1883 published?

CVE-2009-1883 was published on 2009-09-18 and last updated on 2026-06-16.

CVE-2009-1883

CVE-2009-1883 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 4.4)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Linux Linux Kernel
Published: 2009-09-18
Last modified: 2026-06-16

Description

The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9 does not perform a capability check for the Z90QUIESCE operation, which allows local users to leverage euid 0 privileges to force a driver outage.

Frequently asked questions

What is CVE-2009-1883?: The z90crypt_unlocked_ioctl function in the z90crypt driver in the Linux kernel 2.6.9 does not perform a capability check for the Z90QUIESCE operation, which allows local users to leverage euid 0 privileges to force a driver outage.
How severe is CVE-2009-1883?: CVE-2009-1883 has a CVSS 2.0 base score of 4.4, rated medium severity.
Is CVE-2009-1883 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1883?: CVE-2009-1883 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1883?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1883 published?: CVE-2009-1883 was published on 2009-09-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:2.6.9:*:*:*:*:*:*:*

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