CVE-2011-4971: memcached Numeric Errors
Vulnerability summary
CVE-2011-4971 is a medium (CVSS 5.0) Numeric Errors vulnerability in memcached. EPSS estimates a 22.32% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities. 3 public exploits are recorded.
Weaponized exploit (Metasploit, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Duplicates 1 · Related 3Timeline
- 12-12-2013PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
22.32%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
No change 0.00 pp
From 22.32% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
3 foundExploit Reference (insecurety.net)
Maturity: unknown
Exploit Reference (code.google.com)
Maturity: unknown
Memcached Remote Denial of Service
auxiliary/dos/misc/memcached
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Mageia2 products
- memcached< 1.4.15-1.mga2
- memcached< 1.4.15-1.mga3
Debian1 product
- memcached< 1.4.13-0.3
Memcached1 product
- memcachedEOL≤ 1.4.5 | 1.2.7 | 1.2.8 | 1.4.0 | 1.4.1 | 1.4.2 | 1.4.3 | 1.4.4
3 vendors · 4 products
References
13 links- puppet.com/security/cve/cve-2011-4971X Refsource CONFIRM