How severe is CVE-2007-3726?

CVE-2007-3726 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2007-3726 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3726?

CVE-2007-3726 affects Rarlab Unrar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-3726?

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

When was CVE-2007-3726 published?

CVE-2007-3726 was published on 2007-07-12 and last updated on 2026-06-16.

CVE-2007-3726

CVE-2007-3726 is a medium-severity vulnerability in Rarlab Unrar with a CVSS 2.0 base score of 4.3. 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 4.3)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Rarlab Unrar
Published: 2007-07-12
Last modified: 2026-06-16

Description

Integer signedness error in the SET_VALUE function in rarvm.cpp in unrar 3.70 beta 3, as used in products including WinRAR and RAR for OS X, allows user-assisted remote attackers to cause a denial of service (crash) via a crafted RAR archive that causes a negative signed number to be cast to a large unsigned number.

Frequently asked questions

What is CVE-2007-3726?: Integer signedness error in the SET_VALUE function in rarvm.cpp in unrar 3.70 beta 3, as used in products including WinRAR and RAR for OS X, allows user-assisted remote attackers to cause a denial of service (crash) via a crafted RAR archive that causes a negative signed number to be cast to a large unsigned number.
How severe is CVE-2007-3726?: CVE-2007-3726 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-3726 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3726?: CVE-2007-3726 affects Rarlab Unrar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-3726?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3726 published?: CVE-2007-3726 was published on 2007-07-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:rarlab:unrar:3.70_beta_3:*:*:*:*:*:*:*

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