CRITICAL
The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5 allows remote attackers to execute arbitrary code via an LDAP attribute with a crafted serialized Java object, aka LDAP entry poisoning
Published Dec 9, 2016
9.8
CRITICALCVSS 3.0
EPSS 4.71%
Description
The LDAP directory connector in Atlassian Crowd before 2.8.8 and 2.9.x before 2.9.5 allows remote attackers to execute arbitrary code via an LDAP attribute with a crafted serialized Java object, aka LDAP entry poisoning.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
4.71% 0.04705
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.04705
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.71% (0.04705) | 91.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.71% (0.04705) | 90.62th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.11% (0.03112) | 85.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 8.08% (0.08082) | 86.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.11% (0.03112) | 85.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.35% (0.01349) | 86.72th | v3 (v2023.03.01) |
| Dec 22, 2023 | 1.35% (0.01349) | 84.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.95% (0.00955) | 80.85th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.79% (0.05785) | 90.41th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.79% (0.05785) | 89.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.79% (0.05785) | 77.27th | v2 (v2022.01.01) |
Weaknesses (1)
References (5)
- http://www.securityfocus.com/archive/1/539655/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/93826 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://confluence.atlassian.com/crowd/crowd-security-advisory-2016-10-19-856697283.html x_refsource_CONFIRMVendor Advisory
- https://jira.atlassian.com/browse/CWD-4790 x_refsource_CONFIRMIssue Tracking
- https://www.blackhat.com/docs/us-16/materials/us-16-Munoz-A-Journey-From-JNDI-LDAP-Manipulation-To-RCE-wp.pdf x_refsource_MISCNot Applicable
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/archive/1/539655/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/93826 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://confluence.atlassian.com/crowd/crowd-security-advisory-2016-10-19-856697283.html | x_refsource_CONFIRMVendor Advisory | |
| https://jira.atlassian.com/browse/CWD-4790 | x_refsource_CONFIRMIssue Tracking | |
| https://www.blackhat.com/docs/us-16/materials/us-16-Munoz-A-Journey-From-JNDI-LDAP-Manipulation-To-RCE-wp.pdf | x_refsource_MISCNot Applicable |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner hpe
Published Dec 9, 2016
Updated Aug 6, 2024
Reserved Aug 1, 2016
Link CVE-2016-6496
CISA Vulnrichment
Updated n/a