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CVE-2011-1753

19
FAUCET Score

CVE-2011-1753 describes a denial-of-service vulnerability in ejabberd (versions before 2.1.7 and 3.x before 3.0.0-alpha-3) and exmpp (before 0.9.7). This flaw allows remote attackers to exhaust system resources (memory and CPU) by sending a specially crafted XML document with excessive nested entity references, a technique similar to a "billion laughs" attack. The vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no authentication required, leading to a partial denial of service. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.6CPE matchmatch criteria
cpe:2.3:a:process-one:ejabberd:*:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:process-one:ejabberd:0.9:*:*:*:*:*:*:*
0.9.1CPE matchmatch criteria
cpe:2.3:a:process-one:ejabberd:0.9.1:*:*:*:*:*:*:*
0.9.8CPE matchmatch criteria
cpe:2.3:a:process-one:ejabberd:0.9.8:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:process-one:ejabberd:1.0.0:*:*:*:*:*:*:*

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
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 69th 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

lists.fedoraproject.org / pipermail/package-announce/2011-June/062099.html
lists.fedoraproject.org / pipermail/package-announce/2011-June/062145.html
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/44765
Vendor Advisory
secunia.com / advisories/44807
Vendor Advisory
secunia.com / advisories/45120
exchange.xforce.ibmcloud.com / vulnerabilities/67769
git.process-one.net / ejabberd/mainline/commit/bd1df027c622e1f96f9eeaac612a6a956c1ff0b6
Patch
debian.org / security/2011/dsa-2248
ejabberd.im / ejabberd-2.1.7
Patch
process-one.net / en/ejabberd/release_notes/release_note_ejabberd_2.1.7
securityfocus.com / bid/48072