Is CVE-2013-3926 being actively exploited?

CVE-2013-3926 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-3926?

CVE-2013-3926 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2013-3926

HIGH · CVSS 7.5EPSS 1.9%EU EUVD

Atlassian Crowd 2.6.3 allows remote attackers to execute arbitrary commands via unspecified vectors related to a "symmetric backdoor." NOTE: as of 20130704, the vendor could not reproduce the issue, stating "We've been unable to substantiate the existence of [CVE-2013-3926]. The author of the article has not contacted Atlassian and has provided no detail, making it difficult to validate the claim... If we can confirm that there is a vulnerability, a patch will be issued.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS score: 1.9% (80th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-3858)
Published: July 1, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-3858 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

atlassian / crowd

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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