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CVE-2011-1757

18
FAUCET Score

CVE-2011-1757 describes a denial-of-service vulnerability in DJabberd 0.84 and earlier, stemming from improper recursion detection during XML entity expansion. An unauthenticated remote attacker can exploit this by sending a crafted XML document with deeply nested entity references, leading to significant memory and CPU consumption. While the CVSS score is 5.0 (medium severity) with a low attack complexity, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.84CPE matchmatch criteria
cpe:2.3:a:brad_fitzpatrick:djabberd:*:*:*:*:*:*:*:*
0.80CPE matchmatch criteria
cpe:2.3:a:brad_fitzpatrick:djabberd:0.80:*:*:*:*:*:*:*
0.81CPE matchmatch criteria
cpe:2.3:a:brad_fitzpatrick:djabberd:0.81:*:*:*:*:*:*:*
0.82CPE matchmatch criteria
cpe:2.3:a:brad_fitzpatrick:djabberd:0.82:*:*:*:*:*:*:*
0.83CPE matchmatch criteria
cpe:2.3:a:brad_fitzpatrick:djabberd:0.83:*:*:*:*:*:*:*

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
1.12%
Probability of exploitation in next 30 days
EPSS Percentile
62.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0112 is in the 40th percentile among its peer group of 23,701 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

groups.google.com / group/djabberd/msg/e3b250f3c1877ede