THREATPORT/VULNERABILITY/CVE-2004-0994
HIGH SEVERITY

CVE-2004-0994

Xzgv Image Viewer vulnerability

CVSS
10.0
EPSS
5.1%
EPSS pct
92th
Exploited
No known
Multiple integer overflows in xzgv 0.8 and earlier allow remote attackers to execute arbitrary code via images with large width and height values, which trigger a heap-based buffer overflow, as demonstrated in the read_prf_file function in readprf.c. NOTE: CVE-2004-0994 and CVE-2004-1095 identify sets of bugs that only partially overlap, despite having the same developer. Therefore, they should be regarded as distinct.
Affected vendor
Zgv
Affected product
Xzgv Image Viewer
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Published
2005-01-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 5.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2004-0994

  • Confirm whether Zgv Xzgv Image Viewer is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2004-0994.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2004-0994

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2004-0994 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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