How severe is CVE-2009-1516?

CVE-2009-1516 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2009-1516 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1516?

CVE-2009-1516 affects Icewarp Merak Mail Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1516?

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-2009-1516 published?

CVE-2009-1516 was published on 2009-05-04 and last updated on 2026-06-16.

CVE-2009-1516

CVE-2009-1516 is a high-severity vulnerability in Icewarp Merak Mail Server with a CVSS 2.0 base score of 7.5. 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: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Icewarp Merak Mail Server
Published: 2009-05-04
Last modified: 2026-06-16

Description

Stack-based buffer overflow in the IceWarpServer.APIObject ActiveX control in api.dll in IceWarp Merak Mail Server 9.4.1 might allow context-dependent attackers to execute arbitrary code via a large value in the second argument to the Base64FileEncode method, as possibly demonstrated by a web application that accepts untrusted input for this method.

Frequently asked questions

What is CVE-2009-1516?: Stack-based buffer overflow in the IceWarpServer.APIObject ActiveX control in api.dll in IceWarp Merak Mail Server 9.4.1 might allow context-dependent attackers to execute arbitrary code via a large value in the second argument to the Base64FileEncode method, as possibly demonstrated by a web application that accepts untrusted input for this method.
How severe is CVE-2009-1516?: CVE-2009-1516 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2009-1516 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1516?: CVE-2009-1516 affects Icewarp Merak Mail Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1516?: 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-2009-1516 published?: CVE-2009-1516 was published on 2009-05-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:icewarp:merak_mail_server:9.4.1:*:*:*:*:*:*:*

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