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CVE Record

CVE-2021-31215: SchedMD Slurm before 20.02.7 and 20.03.x through 20.11.x before 20.11.7 allows remote code execution as Slu...

SchedMD Slurm before 20.02.7 and 20.03.x through 20.11.x before 20.11.7 allows remote code execution as SlurmUser because use of a PrologSlurmctld or EpilogSlurmctld script leads to environment mishandling.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

Slurm clusters running affected versions may allow remote code execution as the SlurmUser account when controller prolog or epilog scripts are used. This matters because Slurm often coordinates shared HPC resources, so compromise of scheduler-level execution can affect jobs, data, and cluster operations.

Executive priority

Prioritize remediation for affected Slurm clusters, especially production HPC or research environments. The issue is not confirmed as exploited here, but remote code execution in scheduler infrastructure can create meaningful operational and data-security risk.

Technical view

CVE-2021-31215 affects SchedMD Slurm before 20.02.7 and 20.03.x through 20.11.x before 20.11.7. The issue is environment mishandling involving PrologSlurmctld or EpilogSlurmctld scripts, allowing remote code execution as SlurmUser. No CVSS, CWE, or detailed exploit preconditions were provided in the source bundle.

Likely exposure

Exposure is most likely in organizations running Slurm clusters on affected versions with PrologSlurmctld or EpilogSlurmctld configured. Public internet exposure is not established by the sources; validate cluster scheduler versions and controller configuration.

Exploitation context

The provided sources do not state active exploitation, and the CVE is not listed as CISA KEV in the bundle. Treat this as a serious conditional RCE risk, not as confirmed exploitation in the wild.

Researcher notes

The bundle provides a concise vulnerability statement but lacks CVSS, CWE, detailed exploitability conditions, and indicators. Analysis should focus on affected Slurm version ranges, controller prolog/epilog usage, SlurmUser execution context, and vendor or distro package status.

Mitigation direction

  • Upgrade Slurm to 20.02.7, 20.11.7, or a later vendor-supported release.
  • Apply relevant distribution security updates for Fedora or Debian packages if used.
  • Check SchedMD guidance before relying on configuration-only workarounds.
  • Review use of PrologSlurmctld and EpilogSlurmctld scripts on controllers.
  • Prioritize scheduler controllers and shared cluster management nodes.

Validation and detection

  • Inventory Slurm versions across controllers and managed cluster nodes.
  • Check whether PrologSlurmctld or EpilogSlurmctld is configured.
  • Confirm package update status against SchedMD or distribution advisories.
  • Review SlurmUser privileges and scheduler-controller operational boundaries.
  • Look for unexpected scheduler script changes or unusual SlurmUser activity.
Prepared
Confidence
medium
Sources
7

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-31215 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
6Source 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.