HOMEVULNERABILITIESCVE-2004-1027
MEDIUM

CVE-2004-1027

NVD-CWE-OtherPublished: March 1, 2005· Updated: Jun 16, 2026

5.0
CVSS v3.1

Official Description

Directory traversal vulnerability in the -x (extract) command line option in unarj allows remote attackers to overwrite arbitrary files via an arj archive with filenames that contain .. (dot dot) sequences.

NVD Source

Technical Analysis

CVE-2004-1027 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected Vendors & Products

arjsoftware1 product(s)
unarj
Debian1 product(s)
debian linux
gentoo1 product(s)
linux
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

All References (16)

Quick Facts

CVE IDCVE-2004-1027
CVSS Score5.0 / 10
SeverityMEDIUM
CISA KEVNo
Affected3 vendor(s)
PublishedMar 1, 2005

Related CVEs (NVD-CWE-Other)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2004-1027 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.