How severe is CVE-2007-4426?

CVE-2007-4426 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-4426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-4426?

CVE-2007-4426 primarily affects Live For Speed. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-4426?

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

When was CVE-2007-4426 published?

CVE-2007-4426 was published on 2007-08-20 and last updated on 2026-06-16.

CVE-2007-4426

CVE-2007-4426 is a medium-severity vulnerability in Live For Speed with a CVSS 2.0 base score of 5.0. 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 5.0)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Live For Speed
Published: 2007-08-20
Last modified: 2026-06-16

Description

Live for Speed (LFS) S1 and S2 allows remote attackers to cause a denial of service (server crash) via (1) a certain 0x00 byte in a pre-login ID 3 packet, which triggers a NULL dereference; or (2) a pre-login ID 5 packet that lacks certain strings, which triggers an invalid pointer dereference.

Frequently asked questions

What is CVE-2007-4426?: Live for Speed (LFS) S1 and S2 allows remote attackers to cause a denial of service (server crash) via (1) a certain 0x00 byte in a pre-login ID 3 packet, which triggers a NULL dereference; or (2) a pre-login ID 5 packet that lacks certain strings, which triggers an invalid pointer dereference.
How severe is CVE-2007-4426?: CVE-2007-4426 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-4426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4426?: CVE-2007-4426 primarily affects Live For Speed. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-4426 published?: CVE-2007-4426 was published on 2007-08-20 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:live_for_speed:live_for_speed:s1:*:*:*:*:*:*:*
cpe:2.3:a:live_for_speed:live_for_speed:s2:*:*:*:*:*:*:*

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