How severe is CVE-2007-3673?

CVE-2007-3673 has a CVSS 2.0 base score of 6.9, rated medium severity.

Is CVE-2007-3673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-3673?

CVE-2007-3673 primarily affects Symantec Client Security. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-3673?

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

When was CVE-2007-3673 published?

CVE-2007-3673 was published on 2007-07-15 and last updated on 2026-06-16.

CVE-2007-3673

CVE-2007-3673 is a medium-severity vulnerability in Symantec Client Security with a CVSS 2.0 base score of 6.9. 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 6.9)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Symantec Client Security
Published: 2007-07-15
Last modified: 2026-06-16

Description

Symantec symtdi.sys before 7.0.0, as distributed in Symantec AntiVirus Corporate Edition 9 through 10.1 and Client Security 2.0 through 3.1, Norton AntiSpam 2005, and Norton AntiVirus, Internet Security, Personal Firewall, and System Works 2005 and 2006; allows local users to gain privileges via a crafted Interrupt Request Packet (Irp) in an IOCTL 0x83022323 request to \\symTDI\, which results in memory overwrite.

Frequently asked questions

What is CVE-2007-3673?: Symantec symtdi.sys before 7.0.0, as distributed in Symantec AntiVirus Corporate Edition 9 through 10.1 and Client Security 2.0 through 3.1, Norton AntiSpam 2005, and Norton AntiVirus, Internet Security, Personal Firewall, and System Works 2005 and 2006; allows local users to gain privileges via a crafted Interrupt Request Packet (Irp) in an IOCTL 0x83022323 request to \\symTDI\, which results in memory overwrite.
How severe is CVE-2007-3673?: CVE-2007-3673 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2007-3673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-3673?: CVE-2007-3673 primarily affects Symantec Client Security. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-3673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-3673 published?: CVE-2007-3673 was published on 2007-07-15 and last updated on 2026-06-16.

References

Affected products (25)

cpe:2.3:a:symantec:client_security:2.0:*:*:*:*:*:*:*
cpe:2.3:a:symantec:client_security:3.0:*:*:*:*:*:*:*
cpe:2.3:a:symantec:client_security:3.1:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_antispam:2005:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.0.338:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.1:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.1.1.1000:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.1.1000:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.2:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.2.1000:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.3.1000:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.4:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.5:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:9.0.5.1100:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:10.0:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:10.1:*:corporate:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:2005:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_antivirus:2006:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_internet_security:2005:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_internet_security:2006:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_personal_firewall:2005:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_personal_firewall:2006:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_system_works:2005:*:*:*:*:*:*:*
cpe:2.3:a:symantec:norton_system_works:2006:*:*:*:*:*:*:*

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