How severe is CVE-2008-4771?

CVE-2008-4771 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-4771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4771?

CVE-2008-4771 primarily affects 4xem Vatctrl Class. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4771?

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-2008-4771 published?

CVE-2008-4771 was published on 2008-10-28 and last updated on 2026-06-16.

CVE-2008-4771

CVE-2008-4771 is a critical-severity vulnerability in 4xem Vatctrl Class with a CVSS 2.0 base score of 9.3. 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-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: 4xem Vatctrl Class
Published: 2008-10-28
Last modified: 2026-06-16

Description

Stack-based buffer overflow in VATDecoder.VatCtrl.1 ActiveX control in (1) 4xem VatCtrl Class (VATDecoder.dll 1.0.0.27 and 1.0.0.51), (2) D-Link MPEG4 SHM Audio Control (VAPGDecoder.dll 1.7.0.5), (3) Vivotek RTSP MPEG4 SP Control (RtspVapgDecoderNew.dll 2.0.0.39), and possibly other products, allows remote attackers to execute arbitrary code via a long Url property. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2008-4771?: Stack-based buffer overflow in VATDecoder.VatCtrl.1 ActiveX control in (1) 4xem VatCtrl Class (VATDecoder.dll 1.0.0.27 and 1.0.0.51), (2) D-Link MPEG4 SHM Audio Control (VAPGDecoder.dll 1.7.0.5), (3) Vivotek RTSP MPEG4 SP Control (RtspVapgDecoderNew.dll 2.0.0.39), and possibly other products, allows remote attackers to execute arbitrary code via a long Url property. NOTE: some of these details are obtained from third party information.
How severe is CVE-2008-4771?: CVE-2008-4771 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-4771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-4771?: CVE-2008-4771 primarily affects 4xem Vatctrl Class. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-4771?: 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-2008-4771 published?: CVE-2008-4771 was published on 2008-10-28 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:4xem:vatctrl_class:1.0.0.27:*:*:*:*:*:*:*
cpe:2.3:a:4xem:vatctrl_class:1.0.0.51:*:*:*:*:*:*:*
cpe:2.3:a:d-link:mpeg4_shm_audio_control:1.7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:vivotek:rtsp_mpeg4_sp_control:2.0.0.39:*:*:*:*:*:*:*

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