How severe is CVE-2007-5047?

CVE-2007-5047 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2007-5047 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-5047?

CVE-2007-5047 affects Symantec Norton Internet Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-5047?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2007-5047 published?

CVE-2007-5047 was published on 2007-09-24 and last updated on 2026-06-16.

CVE-2007-5047

CVE-2007-5047 is a high-severity vulnerability in Symantec Norton Internet Security with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Symantec Norton Internet Security
Published: 2007-09-24
Last modified: 2026-06-16

Description

Norton Internet Security 2008 15.0.0.60 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via the NtOpenSection kernel SSDT hook. NOTE: the NtCreateMutant and NtOpenEvent function hooks are already covered by CVE-2007-1793.

Frequently asked questions

What is CVE-2007-5047?: Norton Internet Security 2008 15.0.0.60 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows local users to cause a denial of service (crash) and possibly gain privileges via the NtOpenSection kernel SSDT hook. NOTE: the NtCreateMutant and NtOpenEvent function hooks are already covered by CVE-2007-1793.
How severe is CVE-2007-5047?: CVE-2007-5047 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2007-5047 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-5047?: CVE-2007-5047 affects Symantec Norton Internet Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-5047?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-5047 published?: CVE-2007-5047 was published on 2007-09-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:symantec:norton_internet_security:2008_15.0.0.60:*:*:*:*:*:*:*

More vulnerabilities in Symantec Norton Internet Security

CVE-2007-1689 — Critical (CVSS 10.0): Buffer overflow in the ISAlertDataCOM ActiveX control in ISLALERT.DLL for Norton Personal Firewall 2004 and Internet…
CVE-2006-6490 — Critical (CVSS 10.0): Multiple buffer overflows in the SupportSoft (1) SmartIssue (tgctlsi.dll) and (2) ScriptRunner (tgctlsr.dll) ActiveX…
CVE-2004-0444 — Critical (CVSS 10.0): Multiple vulnerabilities in SYMDNS.SYS for Symantec Norton Internet Security and Professional 2002 through 2004, Norton…
CVE-2016-3645 — Critical (CVSS 9.8): Integer overflow in the TNEF unpacker in the AntiVirus Decomposer engine in Symantec Advanced Threat Protection (ATP);…
CVE-2010-0107 — Critical (CVSS 9.3): Buffer overflow in an ActiveX control (SYMLTCOM.dll) in Symantec N360 1.0 and 2.0; Norton Internet Security, AntiVirus,…
CVE-2008-0312 — Critical (CVSS 9.3): Stack-based buffer overflow in the AutoFix Support Tool ActiveX control 2.7.0.1 in SYMADATA.DLL in multiple Symantec…

All CVEs affecting Symantec Norton Internet Security →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →