How severe is CVE-2002-1826?

CVE-2002-1826 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2002-1826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1826?

CVE-2002-1826 affects Grsecurity Grsecurity Kernel Patch. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2002-1826?

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

When was CVE-2002-1826 published?

CVE-2002-1826 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1826

CVE-2002-1826 is a medium-severity vulnerability in Grsecurity Grsecurity Kernel Patch with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.6)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Grsecurity Grsecurity Kernel Patch
Published: 2002-12-31
Last modified: 2026-06-16

Description

grsecurity 1.9.4 for Linux kernel 2.4.18 allows local users to bypass read-only permissions by using mmap to directly map /dev/mem or /dev/kmem to kernel memory.

Frequently asked questions

What is CVE-2002-1826?: grsecurity 1.9.4 for Linux kernel 2.4.18 allows local users to bypass read-only permissions by using mmap to directly map /dev/mem or /dev/kmem to kernel memory.
How severe is CVE-2002-1826?: CVE-2002-1826 has a CVSS 2.0 base score of 4.6, rated medium severity.
Is CVE-2002-1826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1826?: CVE-2002-1826 affects Grsecurity Grsecurity Kernel Patch. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2002-1826?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1826 published?: CVE-2002-1826 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:grsecurity:grsecurity_kernel_patch:1.9.4:*:*:*:*:*:*:*

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