Trending
CVE-2010-20103

CVE detail

CVE-2010-20103

A malicious backdoor was embedded in the official ProFTPD 1.3.3c source tarball distributed between November 28 and December 2, 2010. The backdoor implements a hidden FTP command trigger that, when invoked, causes the server to execute arbitrary shell commands with root privileges. This allows remote, unauthenticated attackers to run any OS command on the FTP server host.

CVSS 9.3 · CriticalBuzz score 42.0

Buzz score

Why this CVE is surfacing

Buzz score total 42.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 22.0 · diversity 20.0 · KEV 0.0 · OTX 0.0 · PoC 0.0

Mention score

22.0

8 evidence mentions in the snapshot

Diversity score

20.0

7 sources across 3 categories

KEV score

0.0

No KEV entry observed

OTX score

0.0

0 OTX pulses

PoC score

0.0

0 repos · best confidence N/A

Best PoC traction

Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions: 0; within the 30d window
Peak daily: 0; highest bucket

Evidence

Source links by recency

Newest mentions first

8 source links · newest first

https://www.vulncheck.com/advisories/proftpd-backdoor-command-executionwww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comAug 20, 2025, 4:15 PM
https://www.exploit-db.com/exploits/16921www.exploit-db.com
No excerpt available.
Exploitwww.exploit-db.comAug 20, 2025, 4:15 PM
https://www.exploit-db.com/exploits/15662www.exploit-db.com
No excerpt available.
Exploitwww.exploit-db.comAug 20, 2025, 4:15 PM
https://web.archive.org/web/20111107212129/http://rsync.proftpd.org/web.archive.org
No excerpt available.
Exploitweb.archive.orgAug 20, 2025, 4:15 PM
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/ftp/proftpd_133c_backdoor.rbraw.githubusercontent.com
No excerpt available.
Exploitraw.githubusercontent.comAug 20, 2025, 4:15 PM
https://github.com/proftpd/proftpdgithub.com
No excerpt available.
Exploitgithub.comAug 20, 2025, 4:15 PM
https://advisories.checkpoint.com/defense/advisories/public/2011/cpai-2010-151.html/advisories.checkpoint.com
No excerpt available.
Third Party Advisoryadvisories.checkpoint.comAug 20, 2025, 4:15 PM
http://www.proftpd.org/www.proftpd.org
No excerpt available.
Release Noteswww.proftpd.orgAug 20, 2025, 4:15 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars

No public PoC repositories have been matched yet.

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External lookup

Potential internet exposure

Potential exposure only — not proof of vulnerability.Shodan results indicate potentially internet-exposed products, not confirmed vulnerable systems. They do not confirm that any returned system is vulnerable to CVE-2010-20103.

Product-level CPE searches intentionally omit version fields and NVD version-range or configuration certainty. Verify the exact product version and configuration independently.

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Product CPE queries

Derived from this CVE's existing NVD CPE 2.3 records; the application, operating-system, or hardware part is retained.

cpe:2.3:a:proftpd:proftpdSearch this product on Shodan

Exact CVE query

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Shodan's exact vuln: filter is separate from the product searches above and requires an eligible paid Shodan plan.

vuln:CVE-2010-20103Search this CVE on Shodan

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Metadata

Canonical fields

NVD status

Analyzed

Published

Aug 20, 2025

Modified

Jul 15, 2026

Official record

Authoritative NVD record

CVSS vector

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

CWE IDs

Vendor classifications

How this vector reads

CVSS 4.0 base metrics decoded below. This explanation does not recalculate or change the NVD score.

Attack Vector (AV): Network. The vulnerable system can be reached across network boundaries.
Attack Complexity (AC): Low. No special conditions beyond the attacker-controlled steps are required.
Attack Requirements (AT): None. No prerequisite deployment or execution condition is required.
Privileges Required (PR): None. The attacker needs no privileges on the vulnerable system.
User Interaction (UI): None. Exploitation does not require a targeted user to act.
Vulnerable System Confidentiality (VC): High. There is a total or serious impact to this security property.
Vulnerable System Integrity (VI): High. There is a total or serious impact to this security property.
Vulnerable System Availability (VA): High. There is a total or serious impact to this security property.
Subsequent System Confidentiality (SC): None. There is no direct impact to this security property.
Subsequent System Integrity (SI): None. There is no direct impact to this security property.
Subsequent System Availability (SA): None. There is no direct impact to this security property.

Optional CVSS v4 metrics remain in the raw vector; only base metrics are expanded here.

Signals

Exploitation indicators

0 stored signals · no KEV · 0 OTX pulses