How severe is CVE-2009-2543?

CVE-2009-2543 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-2543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2543?

CVE-2009-2543 primarily affects Ibm Proventia Desktop Endpoint Security. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2543?

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-2009-2543 published?

CVE-2009-2543 was published on 2009-07-20 and last updated on 2026-06-16.

CVE-2009-2543

CVE-2009-2543 is a critical-severity vulnerability in Ibm Proventia Desktop Endpoint Security with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Proventia Desktop Endpoint Security
Published: 2009-07-20
Last modified: 2026-06-16

Description

Multiple unspecified vulnerabilities in the IBM Proventia engine 4.9.0.0.44 20081231, as used in IBM Proventia Network Mail Security System, Network Mail Security System Virtual Appliance, Desktop Endpoint Security, Network Multi-Function Security (MFS), and possibly other products, allow remote attackers to bypass detection of malware via a modified (1) ZIP or (2) CAB archive, a related issue to CVE-2009-1240.

Frequently asked questions

What is CVE-2009-2543?: Multiple unspecified vulnerabilities in the IBM Proventia engine 4.9.0.0.44 20081231, as used in IBM Proventia Network Mail Security System, Network Mail Security System Virtual Appliance, Desktop Endpoint Security, Network Multi-Function Security (MFS), and possibly other products, allow remote attackers to bypass detection of malware via a modified (1) ZIP or (2) CAB archive, a related issue to CVE-2009-1240.
How severe is CVE-2009-2543?: CVE-2009-2543 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-2543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2543?: CVE-2009-2543 primarily affects Ibm Proventia Desktop Endpoint Security. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2543?: 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-2009-2543 published?: CVE-2009-2543 was published on 2009-07-20 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:ibm:proventia_desktop_endpoint_security:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:proventia_network_mail_security_system:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:proventia_network_mail_security_system_vitual_appliance:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:proventia_network_multi-function_security:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Proventia Desktop Endpoint Security

CVE-2009-1240 — Critical (CVSS 10.0): Unspecified vulnerability in the IBM Proventia engine 4.9.0.0.44 20081231, as used in IBM Proventia Network Mail…

All CVEs affecting Ibm Proventia Desktop Endpoint Security →