How severe is CVE-2008-2551?

CVE-2008-2551 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-2551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 47% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2551?

CVE-2008-2551 affects Icona Instant Messenger. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-2551?

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-2008-2551 published?

CVE-2008-2551 was published on 2008-06-04 and last updated on 2026-06-16.

CVE-2008-2551

CVE-2008-2551 is a critical-severity vulnerability in Icona Instant Messenger with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 47% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 47% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Icona Instant Messenger
Published: 2008-06-04
Last modified: 2026-06-16

Description

The DownloaderActiveX Control (DownloaderActiveX.ocx) in Icona SpA C6 Messenger 1.0.0.1 allows remote attackers to force the download and execution of arbitrary files via a URL in the propDownloadUrl parameter with the propPostDownloadAction parameter set to "run."

Frequently asked questions

What is CVE-2008-2551?: The DownloaderActiveX Control (DownloaderActiveX.ocx) in Icona SpA C6 Messenger 1.0.0.1 allows remote attackers to force the download and execution of arbitrary files via a URL in the propDownloadUrl parameter with the propPostDownloadAction parameter set to "run."
How severe is CVE-2008-2551?: CVE-2008-2551 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-2551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 47% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2551?: CVE-2008-2551 affects Icona Instant Messenger. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-2551?: 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-2008-2551 published?: CVE-2008-2551 was published on 2008-06-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:icona:instant_messenger:1.0.0.1:*:*:*:*:*:*:*

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