Security readout for executives and security teams
This issue affects OpenSSH 5.6 and 5.7 when ssh-keygen generates legacy certificates. A field may include uninitialized memory, potentially exposing sensitive stack data. The business risk is highest where older OpenSSH tooling is still used for certificate signing or embedded in vendor appliances. Exposure is likely limited to OpenSSH 5.6 or 5.7 environments that generate legacy SSH certificates. Vendor advisories are referenced, but the bundle does not provide affected vendor product versions. Treat as a targeted legacy exposure issue, not an internet-wide emergency. Prioritize systems that sign SSH certificates, security infrastructure, and vendor appliances running older OpenSSH components. Mitigation focus: Identify any OpenSSH 5.6 or 5.7 installations used for certificate generation.; Check OpenSSH and vendor advisories for fixed packages or supported upgrade paths.; Avoid legacy certificate generation with vulnerable ssh-keygen versions until remediated..
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
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ATT&CK lookup starting points
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CWE-457: Exact CWE lookup
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Open ATT&CK lookupCVE-2011-0539 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- openssh-certificate-info-disclosure(65163)CVE reference, redhat · vdb-entry, x_refsource_XF
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.