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CVE-2019-12568

31
FAUCET Score

CVE-2019-12568 is a critical stack-based overflow vulnerability affecting Open TFTP Server SP 1.66 and earlier. A remote attacker can exploit this flaw by sending a specially crafted, long TFTP error packet to the server. This can lead to a denial of service or, more critically, arbitrary code execution, with a CVSS score of 9.8. While no public exploit code or active exploitation has been confirmed, the vulnerability has garnered significant community discussion, indicating awareness among security researchers.

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
2.26%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0226 is in the 71st percentile among its peer group of 36,835 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