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CVE-2015-2684

14
FAUCET Score

CVE-2015-2684 describes a denial-of-service vulnerability affecting Shibboleth Service Provider (SP) versions prior to 2.5.4, as well as Debian distributions utilizing these affected versions. Authenticated remote attackers can exploit this by sending a specially crafted SAML message, leading to a crash of the service. The vulnerability has a CVSS score of 4.0, indicating a low severity, with an attack vector over the network, low attack complexity, and a partial impact on availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5.3CPE matchmatch criteria
cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.94%
Probability of exploitation in next 30 days
EPSS Percentile
78.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0194 is in the 90th percentile among its peer group of 21,977 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

shibboleth.net / community/advisories/secadv_20150319.txt
Vendor Advisory
debian.org / security/2015/dsa-3207
securityfocus.com / bid/73314