How severe is CVE-2010-3494?

CVE-2010-3494 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2010-3494 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3494?

CVE-2010-3494 primarily affects G.rodola Pyftpdlib. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3494?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-3494 published?

CVE-2010-3494 was published on 2010-10-19 and last updated on 2026-06-16.

CVE-2010-3494

CVE-2010-3494 is a medium-severity vulnerability in G.rodola Pyftpdlib with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: G.rodola Pyftpdlib
Published: 2010-10-19
Last modified: 2026-06-16

Description

Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.

Frequently asked questions

What is CVE-2010-3494?: Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.
How severe is CVE-2010-3494?: CVE-2010-3494 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2010-3494 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-3494?: CVE-2010-3494 primarily affects G.rodola Pyftpdlib. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-3494?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-3494 published?: CVE-2010-3494 was published on 2010-10-19 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.1:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:g.rodola:pyftpdlib:0.5.0:*:*:*:*:*:*:*

More vulnerabilities in G.rodola Pyftpdlib

CVE-2008-7263 — High (CVSS 7.5): ftpserver.py in pyftpdlib before 0.5.0 does not delay its response after receiving an invalid login attempt, which…
CVE-2007-6737 — High (CVSS 7.5): FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for a USER command that specifies…
CVE-2008-7262 — Medium (CVSS 6.5): Multiple directory traversal vulnerabilities in FTPServer.py in pyftpdlib before 0.3.0 allow remote authenticated users…
CVE-2007-6741 — Medium (CVSS 6.5): The ftp_PORT function in FTPServer.py in pyftpdlib before 0.2.0 does not prevent TCP connections to privileged ports if…
CVE-2007-6736 — Medium (CVSS 6.5): Multiple directory traversal vulnerabilities in FTPServer.py in pyftpdlib before 0.2.0 allow remote authenticated users…
CVE-2007-6739 — Medium (CVSS 5.0): FTPServer.py in pyftpdlib before 0.2.0 allows remote attackers to cause a denial of service via a long command.

All CVEs affecting G.rodola Pyftpdlib →

Other CWE-362 (Race Condition) vulnerabilities

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CVE-2010-1228 — Critical (CVSS 10.0): Multiple race conditions in the sandbox infrastructure in Google Chrome before 4.1.249.1036 have unspecified impact and…
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CVE-2026-46137 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: ADD_ADDR rtx: fix potential…

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