CVE-2013-3571

What it is

socat 1.2.0.0 before 1.7.2.2 and 2.0.0-b1 before 2.0.0-b6, when used for a listen type address and the fork option is enabled, allows remote attackers to cause a denial of service (file descriptor consumption) via multiple request that are refused based on the (1) sourceport, (2) lowport, (3) range, or (4) tcpwrap restrictions.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

2.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2014-05-08 14:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:55 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.1% in the next 30 days (EPSS).
• Severity: 2.6 LOW (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2014-05-08 14:29 UTC

Last modified

2026-06-16 23:55 UTC

Exploit probability

2.1% · EPSS, next 30 days

Record status

Modified

Affected

• dest-unreach Socat 1.2.0.0
• dest-unreach Socat 1.3.0.0
• dest-unreach Socat 1.3.0.1
• dest-unreach Socat 1.3.1.0
• dest-unreach Socat 1.3.2.0
• dest-unreach Socat 1.3.2.1
• dest-unreach Socat 1.3.2.2
• dest-unreach Socat 1.4.0.0

Attack profile CVSS 2.0 · 2.6

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Is it in your code?

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