THREATPORT/VULNERABILITY/CVE-2006-20001
HIGH SEVERITY

CVE-2006-20001

Http Server vulnerability

CVSS
7.5
EPSS
3.5%
EPSS pct
88th
Exploited
No known
A carefully crafted If: request header can cause a memory read, or write of a single zero byte, in a pool (heap) memory location beyond the header value sent. This could cause the process to crash. This issue affects Apache HTTP Server 2.4.54 and earlier.
Affected vendor
Apache
Affected product
Http Server
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2023-01-17

Risk analysis

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

Its EPSS score of 3.5% 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-2006-20001

  • Confirm whether Apache Http Server is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2006-20001.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2006-20001

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2006-20001 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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