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CVE-2004-1027

17
FAUCET Score

CVE-2004-1027 describes a directory traversal vulnerability in the unarj utility, specifically when using the -x (extract) command line option. This flaw allows remote attackers to overwrite arbitrary files on affected systems, including various distributions of Linux and the unarj software itself, by crafting ARJ archives containing filenames with ".." sequences. The vulnerability carries a CVSS score of 5.0, indicating a medium severity. It is easily exploitable over the network with low attack complexity and requires no authentication, leading to a potential impact of partial data integrity compromise. Despite its age, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or Nuclei. The CVE has received minimal community discussion and media coverage, suggesting a low level of public awareness or interest.

Impacted Technologies

VendorProductVersion(s)CPE
2.62CPE matchmatch criteria
cpe:2.3:a:arjsoftware:unarj:2.62:*:*:*:*:*:*:*
2.63CPE matchmatch criteria
cpe:2.3:a:arjsoftware:unarj:2.63:a:*:*:*:*:*:*
2.64CPE matchmatch criteria
cpe:2.3:a:arjsoftware:unarj:2.64:*:*:*:*:*:*:*
2.65CPE matchmatch criteria
cpe:2.3:a:arjsoftware:unarj:2.65:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:P/A:N

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.74%
Probability of exploitation in next 30 days
EPSS Percentile
84.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0274 is in the 78th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2004-1027Low

security flaw

Nov 9, 2004

References

lists.grok.org.uk / pipermail/full-disclosure/2004-October/027348.html
Third Party Advisory
lwn.net / Articles/121827
Third Party Advisory
security.gentoo.org / glsa/glsa-200411-29.xml
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/17684
VDB Entry
debian.org / security/2005/dsa-628
Third Party Advisory
debian.org / security/2005/dsa-652
Third Party Advisory
redhat.com / support/errata/RHSA-2005-007.html
Third Party Advisory
securityfocus.com / bid/11436
PatchThird Party AdvisoryVDB EntryVendor Advisory