01 Record
CVE-2016-10027
Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle attackers to bypass TLS protections and trigger use of
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle attackers to bypass TLS protections and trigger use of
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 74.1% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-01-12 23:00Z9 YR AGO
- Last updated
- 2024-08-06 03:07Z2 YR AGO
- Reserved
- 2016-12-22
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 0324538ee8bf91be257249ea7d9a6ce6d13e78c5dfb9cb01254e9235f7f6b19d
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820b
- lists.fedoraproject.orgFEDORA-2016-897a1e6698https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF/
- www.securityfocus.com95129http://www.securityfocus.com/bid/95129
- issues.igniterealtime.orghttps://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739
- github.comhttps://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04
- www.openwall.com[oss-security] 20161222 Re: CVE Request: Smack: TLS SecurityMode.required not always enforced, leading to striptls attackhttp://www.openwall.com/lists/oss-security/2016/12/22/12
- community.igniterealtime.orghttps://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22