CVE-2011-1575

mediumpriority · attend · 45EPSS 0.333 · 98 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

33.3% (98th) EPSS

CVSS 5.8 · medium

Is it mine?

88 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

cvss

Technical severity, 0–10. One row per scoring source.

5.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v2.05.2mediumAV:N/AC:M/Au:N/C:P/I:P/A:N/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

masamoon/cve-2011-1575-pocVery simple script to test for cve 2011-1575PoC · poc_in_github

affected products (88)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
pureftpd pure-ftpd≤ 1.0.29nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.90nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.91nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.92nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.93nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.94nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95-pre1nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95-pre2nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95-pre3nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95-pre4nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95.1nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.95.2nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.96nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.96.1nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.96pre1nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.97-finalnvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.97.1nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*
pureftpd pure-ftpd= 0.97.2nvdUScpe:2.3:a:pureftpd:pure-ftpd:*:*:*:*:*:*:*:*

showing 20 of 88

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2011-05-23modified 2026-06-16

related (3,726)

Related entries.

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A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected devi…
CVE-2018-0154US	high7.5OT critical	7.07% (94th)	KEV	2018-03-28
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+3721 more

references (42)

External citations — patches, advisories, analysis.

scry

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