CVE-2011-4971

Name: CVE-2011-4971
Creator: NVD / NIST
Published: 2013-12-12T18:55:03.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 22.32%

Last modified Jun 16, 2026

CVE-2011-4971 is a vulnerability of currently unknown severity. Multiple integer signedness errors in the (1) process_bin_sasl_auth, (2) process_bin_complete_sasl_auth, (3) process_bin_update, and (4) process_bin_append_prepend functions in Memcached 1.4.5 and earlier allow remote attackers to cause a denial of service (crash) via a large body length value in a packet.. EPSS estimates a 22.32% chance of exploitation in the next 30 days.

Description

Multiple integer signedness errors in the (1) process_bin_sasl_auth, (2) process_bin_complete_sasl_auth, (3) process_bin_update, and (4) process_bin_append_prepend functions in Memcached 1.4.5 and earlier allow remote attackers to cause a denial of service (crash) via a large body length value in a packet.

Metrics

EPSS Probability

22.32%

97.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-189

Affected Software

Vendor	Product	Versions
Memcached	Memcached	<= 1.4.5
Memcached	Memcached	1.2.7
Memcached	Memcached	1.2.8
Memcached	Memcached	1.4.0
Memcached	Memcached	1.4.1
Memcached	Memcached	1.4.2
Memcached	Memcached	1.4.3
Memcached	Memcached	1.4.4

References

Timeline

Published: Dec 12, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-4971?

How severe is CVE-2011-4971?

Severity scoring for CVE-2011-4971 is pending analysis. The EPSS model estimates a 22.32% probability of exploitation in the next 30 days.

How do I fix CVE-2011-4971?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-4971?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST