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CVE-2018-10388

30
FAUCET Score

CVE-2018-10388 is a critical format string vulnerability affecting TFTP Server SP 1.66 and earlier versions. This flaw allows remote, unauthenticated attackers to trigger a denial of service or execute arbitrary code by sending specially crafted format string sequences within a TFTP error packet. With a CVSS score of 9.8, this vulnerability presents a severe risk due to its network-based attack vector, low complexity, and high impact on confidentiality, integrity, and availability. Despite its critical severity, there is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.66CPE matchmatch criteria
cpe:2.3:a:open_tftp_server_project:open_tftp_server:*:*:*:*:sp:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.36%
Probability of exploitation in next 30 days
EPSS Percentile
90.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0436 is in the 84th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sourceforge.net / p/tftp-server/discussion/550564/thread/a586ce62
PatchThird Party Advisory