CVE-2011-10029

Solar FTP Server <= 2.1.1 Malformed USER Denial of Service

HIGH
8.7
CVSS Score
Published: August 20, 2025 at 03:40 PM UTC
Updated: June 16, 2026 at 11:28 PM UTC
1 product affected across 1 vendorSolar FTP Server

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Severity
HIGH8.7
Exploit prediction
EPSS 1%
SSVC
PoC

Description

Solar FTP Server fails to properly handle format strings passed to the USER command. When a specially crafted string containing format specifiers is sent, the server crashes due to a read access violation in the __output_1() function of sfsservice.exe. This results in a denial of service (DoS) condition.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.7HIGHVulnCheck
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-134

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