THREATPORT/VULNERABILITY/CVE-2015-4026
HIGH SEVERITY

CVE-2015-4026

Enterprise Linux vulnerability

CVSS
7.5
EPSS
19.7%
EPSS pct
97th
Exploited
No known
The pcntl_exec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a \x00 character, which might allow remote attackers to bypass intended extension restrictions and execute files with unexpected names via a crafted first argument. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-7243.
Affected vendor
Redhat
Affected product
Enterprise Linux
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness type (CWE)
Published
2015-06-09

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 confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 19.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2015-4026

  • Confirm whether Redhat Enterprise Linux is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2015-4026.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-4026

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-4026 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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