Security readout for executives and security teams
This issue affects the RSA code in wolfSSL/CyaSSL before 3.9.10. A person with local access to a system may be able to learn information about RSA private keys through CPU cache behavior. The sources do not provide a severity score or report active exploitation, but systems using older wolfSSL for sensitive cryptographic operations should be checked. Exposure is most likely where applications or embedded products use wolfSSL/CyaSSL before 3.9.10 and perform RSA private-key operations on systems accessible to local users or shared tenants. The provided data does not identify specific downstream products or distributions. Treat this as a targeted exposure review rather than an emergency based on available evidence. Prioritize upgrades where older wolfSSL protects important private keys on shared or locally accessible systems. Mitigation focus: Upgrade wolfSSL/CyaSSL to version 3.9.10 or later where applicable.; Check wolfSSL vendor guidance for maintained branches and downstream package fixes.; Reduce local user access on systems performing RSA private-key operations..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2016-7439 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.htmlCVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.