CVE-2011-1756 describes a denial-of-service vulnerability in Citadel 7.86 and earlier, specifically within the XMPP module. This flaw allows an unauthenticated remote attacker to exhaust system resources (memory and CPU) by sending a specially crafted XML document with deeply nested entity references, similar to a classic XML bomb attack. While the CVSS score is 5.0 (medium severity) due to its network-based attack vector and low complexity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 7.86CPE matchmatch criteria | cpe:2.3:a:citadel:citadel:*:*:*:*:*:*:*:* | ||
7.11CPE matchmatch criteria | cpe:2.3:a:citadel:citadel:7.11:*:*:*:*:*:*:* | ||
7.50CPE matchmatch criteria | cpe:2.3:a:citadel:citadel:7.50:*:*:*:*:*:*:* | ||
7.60CPE matchmatch criteria | cpe:2.3:a:citadel:citadel:7.60:*:*:*:*:*:*:* | ||
7.80CPE matchmatch criteria | cpe:2.3:a:citadel:citadel:7.80:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
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.
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 records are not available for this CVE.