How severe is CVE-2008-1801?

CVE-2008-1801 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-1801 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1801?

CVE-2008-1801 affects Rdesktop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1801?

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-2008-1801 published?

CVE-2008-1801 was published on 2008-05-12 and last updated on 2026-06-16.

CVE-2008-1801

CVE-2008-1801 is a critical-severity vulnerability in Rdesktop with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Rdesktop
Published: 2008-05-12
Last modified: 2026-06-16

Description

Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.

Frequently asked questions

What is CVE-2008-1801?: Integer underflow in the iso_recv_msg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.
How severe is CVE-2008-1801?: CVE-2008-1801 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-1801 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1801?: CVE-2008-1801 affects Rdesktop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1801?: 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-2008-1801 published?: CVE-2008-1801 was published on 2008-05-12 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:rdesktop:rdesktop:1.5.0:*:*:*:*:*:*:*

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