How severe is CVE-2003-0839?

CVE-2003-0839 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2003-0839 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0839?

CVE-2003-0839 affects Microsoft Windows 2003 Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-0839?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2003-0839 published?

CVE-2003-0839 was published on 2003-11-17 and last updated on 2026-06-16.

CVE-2003-0839

CVE-2003-0839 is a medium-severity vulnerability in Microsoft Windows 2003 Server with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Windows 2003 Server
Published: 2003-11-17
Last modified: 2026-06-16

Description

Directory traversal vulnerability in the "Shell Folders" capability in Microsoft Windows Server 2003 allows remote attackers to read arbitrary files via .. (dot dot) sequences in a "shell:" link.

Frequently asked questions

What is CVE-2003-0839?: Directory traversal vulnerability in the "Shell Folders" capability in Microsoft Windows Server 2003 allows remote attackers to read arbitrary files via .. (dot dot) sequences in a "shell:" link.
How severe is CVE-2003-0839?: CVE-2003-0839 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-0839 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0839?: CVE-2003-0839 affects Microsoft Windows 2003 Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0839?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0839 published?: CVE-2003-0839 was published on 2003-11-17 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:*

More vulnerabilities in Microsoft Windows 2003 Server

CVE-2011-1868 — Critical (CVSS 10.0): The Distributed File System (DFS) implementation in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not…
CVE-2011-1268 — Critical (CVSS 10.0): The SMB client in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server…
CVE-2011-0661 — Critical (CVSS 10.0): The SMB Server service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows…
CVE-2011-0654 — Critical (CVSS 10.0): Integer underflow in the BowserWriteErrorLogEntry function in the Common Internet File System (CIFS) browser service in…
CVE-2010-2550 — Critical (CVSS 10.0): The SMB Server in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server…
CVE-2010-0476 — Critical (CVSS 10.0): The SMB client in Microsoft Windows Server 2003 SP2, Vista Gold, SP1, and SP2, and Windows Server 2008 Gold and SP2…

All CVEs affecting Microsoft Windows 2003 Server →