CVE-2003-1309

CVE-2003-1309 is a critical-severity vulnerability in Zonelabs Zonealarm with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The DeviceIoControl function in the TrueVector Device Driver (VSDATANT) in ZoneAlarm before 3.7.211, Pro before 4.0.146.029, and Plus before 4.0.146.029 allows local users to gain privileges via certain signals (aka "Device Driver Attack").

Frequently asked questions

What is CVE-2003-1309?
The DeviceIoControl function in the TrueVector Device Driver (VSDATANT) in ZoneAlarm before 3.7.211, Pro before 4.0.146.029, and Plus before 4.0.146.029 allows local users to gain privileges via certain signals (aka "Device Driver Attack").
How severe is CVE-2003-1309?
CVE-2003-1309 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-1309 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1309?
CVE-2003-1309 primarily affects Zonelabs Zonealarm. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1309?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2003-1309 published?
CVE-2003-1309 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (3)

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