Security readout for executives and security teams
This flaw affects old Debian and Ubuntu Tomcat packages. A person who already has access to the tomcat account could turn that foothold into root access through packaging cleanup behavior involving the Catalina directory. It is mainly a legacy Linux server risk, not evidence of remote unauthenticated compromise. Exposure is most likely on legacy Debian wheezy/jessie or Ubuntu 12.04, 14.04, 16.04, 16.10, or 17.04 systems running distro Tomcat packages below the advisory-fixed versions. Prioritize remediation for internet-facing or business-critical Tomcat servers on old Debian or Ubuntu releases. The prerequisite limits broad exposure, but successful abuse can convert a Tomcat foothold into full server control. Mitigation focus: Upgrade affected Debian or Ubuntu Tomcat packages to vendor-fixed versions.; Retire or isolate unsupported Debian and Ubuntu releases where practical.; Restrict shell, file, and deployment access to the tomcat account..
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2016-9775 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://www.oracle.com/security-alerts/cpuApr2021.htmlCVE reference · x_refsource_MISC
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845385CVE reference · x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20180731-0002/CVE 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.
