What’s Vulnerable › Vulnerabilities

CVE-2023-33203

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-18 · updated 2026-06-17
• Weakness: CWE-362

Description

The Linux kernel before 6.2.9 has a race condition and resultant use-after-free in drivers/net/ethernet/qualcomm/emac/emac.c if a physically proximate attacker unplugs an emac based device.

Affected products

• Linux kernel: before 6.2.9 — fixed in 6.2.9
• Red Hat Enterprise Linux: 8.0, 9.0

How to fix

Upgrade to a fixed version: Linux kernel 6.2.9. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2192667
• https://bugzilla.suse.com/show_bug.cgi?id=1210685
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.9
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6b6bc5b8bd2d4ca9e1efa9ae0f98a0b0687ace75
• https://bugzilla.redhat.com/show_bug.cgi?id=2192667
• https://bugzilla.suse.com/show_bug.cgi?id=1210685
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.9
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6b6bc5b8bd2d4ca9e1efa9ae0f98a0b0687ace75

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