How severe is CVE-2008-0356?

CVE-2008-0356 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2008-0356 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 73% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-0356?

CVE-2008-0356 primarily affects Citrix Access Essentials. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-0356?

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-2008-0356 published?

CVE-2008-0356 was published on 2008-01-18 and last updated on 2026-06-16.

CVE-2008-0356

CVE-2008-0356 is a critical-severity vulnerability in Citrix Access Essentials with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 73% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 73% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Citrix Access Essentials
Published: 2008-01-18
Last modified: 2026-06-16

Description

Buffer overflow in the Independent Management Architecture (IMA) service in Citrix Presentation Server (MetaFrame Presentation Server) 4.5 and earlier, Access Essentials 2.0 and earlier, and Desktop Server 1.0 allows remote attackers to execute arbitrary code via an invalid size value in a packet to TCP port 2512 or 2513.

Frequently asked questions

What is CVE-2008-0356?: Buffer overflow in the Independent Management Architecture (IMA) service in Citrix Presentation Server (MetaFrame Presentation Server) 4.5 and earlier, Access Essentials 2.0 and earlier, and Desktop Server 1.0 allows remote attackers to execute arbitrary code via an invalid size value in a packet to TCP port 2512 or 2513.
How severe is CVE-2008-0356?: CVE-2008-0356 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2008-0356 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 73% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-0356?: CVE-2008-0356 primarily affects Citrix Access Essentials. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-0356?: 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-2008-0356 published?: CVE-2008-0356 was published on 2008-01-18 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:citrix:access_essentials:*:*:*:*:*:*:*:*
cpe:2.3:a:citrix:desktop_server:1.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:metaframe_presentation_server:*:*:*:*:*:*:*:*
cpe:2.3:a:citrix:presentation_server:*:*:*:*:*:*:*:*

More vulnerabilities in Citrix Access Essentials

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CVE-2008-2299 — Medium (CVSS 5.0): Unspecified vulnerability in SecureICA and ICA Basic encryption of Citrix Presentation Server 4.5 and earlier, Access…
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