THREATPORT/VULNERABILITY/CVE-2019-11365
CRITICAL SEVERITY

CVE-2019-11365

Atftp vulnerability

CVSS
9.8
EPSS
4.3%
EPSS pct
90th
Exploited
No known
An issue was discovered in atftpd in atftp 0.7.1. A remote attacker may send a crafted packet triggering a stack-based buffer overflow due to an insecurely implemented strncpy call. The vulnerability is triggered by sending an error packet of 3 bytes or fewer. There are multiple instances of this vulnerable strncpy pattern within the code base, specifically within tftpd_file.c, tftp_file.c, tftpd_mtftp.c, and tftp_mtftp.c.
Affected vendor
Atftp Project
Affected product
Atftp
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
Published
2019-04-20

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 confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 4.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 90% of all scored CVEs.

Check your external exposure to CVE-2019-11365

  • Confirm whether Atftp Project Atftp is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2019-11365.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-11365

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-11365 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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