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CVE Record

CVE-2014-3856: The funced function in fish (aka fish-shell) 1.23.0 before 2.1.1 does not properly create temporary files,...

The funced function in fish (aka fish-shell) 1.23.0 before 2.1.1 does not properly create temporary files, which allows local users to gain privileges via a temporary file with a predictable name.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2014-3856 is a local privilege-risk issue in fish-shell. The funced helper created temporary files with predictable names in fish 1.23.0 before 2.1.1. A local user could abuse that weakness to gain privileges. It is not a remote internet-facing flaw, but it matters on shared systems or workstations with untrusted local users.

Executive priority

Handle as a moderate local privilege-escalation issue. It should not displace urgent remotely exploitable flaws, but it should be remediated on shared systems and privileged administrator environments where local user boundaries matter.

Technical view

The vulnerability is improper temporary-file creation in fish-shell's funced function. Predictable temporary filenames can let a local attacker influence file handling and escalate privileges. The bundled sources identify affected fish-shell versions as 1.23.0 before 2.1.1. No CVSS score, CWE, or detailed exploit mechanics are provided in the source bundle.

Likely exposure

Exposure is likely limited to systems where vulnerable fish-shell versions are installed and local users can run fish or invoke funced. Internet-facing exposure is not indicated by the sources. Highest concern is multi-user Unix-like systems, shared development hosts, and administrative workstations that retained old fish packages.

Exploitation context

The CVE record describes local privilege gain through predictable temporary files. The source bundle does not show CISA KEV listing, active exploitation, public weaponization status, or remote exploitation. Treat exploitation evidence as incomplete unless vendor, distro, or incident sources add more detail.

Researcher notes

The public bundle is sparse: it names funced, predictable temporary files, affected fish-shell versions, and the 2.1.1 boundary. It does not provide CVSS, CWE, exploit telemetry, or platform package status. Validate with local package metadata and vendor advisories before closing exposure.

Mitigation direction

  • Upgrade fish-shell to 2.1.1 or later where installed.
  • Check operating-system vendor packages for backported fixes.
  • Prioritize shared hosts with untrusted local users.
  • Remove unused vulnerable fish-shell installations.
  • Limit local shell access on systems awaiting remediation.

Validation and detection

  • Inventory installed fish-shell versions across servers and workstations.
  • Confirm vulnerable versions before 2.1.1 are absent or patched.
  • Review package changelogs for CVE-2014-3856 or fish 2.1.1 references.
  • Check for unmanaged fish binaries outside package-manager control.
  • Document exceptions and compensating local-access controls.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2014-3856 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.