THREATPORT/VULNERABILITY/CVE-2007-4783
MEDIUM SEVERITY

CVE-2007-4783

Php vulnerability

CVSS
5.0
EPSS
3.6%
EPSS pct
88th
Exploited
No known
The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.
Affected vendor
Php
Affected product
Php
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2007-09-10

Risk analysis

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

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2007-4783

  • Confirm whether Php Php is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2007-4783.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2007-4783

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2007-4783 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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