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CVE-2011-2188

19
FAUCET Score

CVE-2011-2188 describes a denial-of-service vulnerability in LuaExpat before version 1.2.0, affecting the matthewwild luaexpat product. This flaw allows remote attackers to exhaust system resources (memory and CPU) by submitting a specially crafted XML document with deeply nested entity references, similar to a classic XML bomb attack. With a CVSS score of 5.0, this vulnerability is easily exploitable over the network with low complexity, but only results in partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.0CPE matchmatch criteria
cpe:2.3:a:matthewwild:luaexpat:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:matthewwild:luaexpat:1.0:*:*:*:*:*:*:*
1.0.1CPE matchmatch criteria
cpe:2.3:a:matthewwild:luaexpat:1.0.1:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:matthewwild:luaexpat:1.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.75%
Probability of exploitation in next 30 days
EPSS Percentile
75.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0175 is in the 61st percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bugs.debian.org / cgi-bin/bugreport.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/44866
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/67862
openwall.com / lists/oss-security/2011/06/06/19
openwall.com / lists/oss-security/2011/06/06/4
securityfocus.com / bid/48123