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CVE-2015-4538

20
FAUCET Score

CVE-2015-4538 is an XML External Entity (XXE) vulnerability affecting EMC Atmos versions prior to 2.2.3.426 and 2.3.x before 2.3.1.0. This flaw allows remote authenticated attackers to read arbitrary files or trigger a denial of service by exploiting CPU and memory consumption through crafted XML input. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector and high impact on confidentiality and partial impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.3CPE matchmatch criteria
cpe:2.3:a:emc:atmos:2.2.3:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:emc:atmos:2.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
7.8
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.71%
Probability of exploitation in next 30 days
EPSS Percentile
84.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0271 is in the 83rd percentile among its peer group of 17,823 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, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/133405/EMC-Atmos-2.3.0-XML-External-Entity-Injection.html
seclists.org / bugtraq/2015/Sep/7
securitytracker.com / id/1033456