Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2010-20121

47
FAUCET Score

CVE-2010-20121 is a critical stack-based buffer overflow vulnerability in EasyFTP Server versions up to 1.7.0.11, specifically affecting the FTP command parser when processing the CWD command. This flaw allows unauthenticated remote attackers to achieve arbitrary code execution due to improper input validation. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk with low attack complexity and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a Metasploit module exists for exploitation, and the vulnerability has garnered significant community discussion, indicating awareness and potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.7.0.12CPE matchmatch criteria
cpe:2.3:a:easyftp_server_project:easyftp_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
3.22%
Probability of exploitation in next 30 days
EPSS Percentile
86.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: EasyFTP Server CWD Command Stack Buffer Overflow · Feb 16, 2010
This CVE's current EPSS score of 0.0322 is in the 79th 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

paulmakowski.wordpress.com / 2010/02/28/increasing-payload-size-w-return-address-overwrite
ExploitThird Party Advisory
raw.githubusercontent.com / rapid7/metasploit-framework/master/modules/exploits/windows/ftp/easyftp_cwd_fixret.rb
Exploit
seclists.org / bugtraq/2010/Feb/202
ExploitMailing ListThird Party Advisory
exploit-db.com / exploits/11668
ExploitVDB Entry
exploit-db.com / exploits/12312
ExploitVDB Entry
exploit-db.com / exploits/14402
ExploitVDB Entry
exploit-db.com / exploits/16737
ExploitVDB Entry
vulncheck.com / advisories/easyftp-server-cwd-command-stack-buffer-overflow
Third Party Advisory