THREATPORT/VULNERABILITY/CVE-2004-1617
MEDIUM SEVERITY

CVE-2004-1617

Lynx vulnerability

CVSS
5.0
EPSS
3.8%
EPSS pct
89th
Exploited
No known
Lynx, lynx-ssl, and lynx-cur before 2.8.6dev.8 allow remote attackers to cause a denial of service (infinite loop) via a web page or HTML email that contains invalid HTML including (1) a TEXTAREA tag with a large COLS value and (2) a large tag name in an element that is not terminated, as demonstrated by mangleme. NOTE: a followup suggests that the relevant trigger for this issue is the large COLS value.
Affected vendor
University Of Kansas
Affected product
Lynx
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2004-10-18

Risk analysis

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

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2004-1617

  • Confirm whether University Of Kansas Lynx is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2004-1617.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2004-1617

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2004-1617 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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