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CVE Record

CVE-2021-45104: An issue was discovered in HTCondor 9.0.x before 9.0.10 and 9.1.x before 9.5.1.

An issue was discovered in HTCondor 9.0.x before 9.0.10 and 9.1.x before 9.5.1. An attacker who can capture HTCondor network data can interfere with users' jobs and data.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This CVE affects HTCondor 9.0.x before 9.0.10 and 9.1.x before 9.5.1. A party able to capture HTCondor network traffic could interfere with users' jobs and data. The public bundle does not provide CVSS, CWE, or confirmed exploitation evidence.

Executive priority

Treat this as a targeted infrastructure risk, not a mass-exploitation emergency. Prioritize environments where HTCondor supports production research, compute, or data workflows and where network traffic exposure is plausible.

Technical view

The issue is described as a network-data-capture condition impacting HTCondor 9.0.x and 9.1.x before specified fixed releases. The stated impact is interference with HTCondor jobs and data. Details on protocol mechanics, authentication impact, and exact affected configurations are not present in the supplied sources.

Likely exposure

Exposure is most likely in organizations running affected HTCondor release branches, especially where scheduler, submit, or worker traffic can be observed by untrusted parties.

Exploitation context

The bundle does not indicate active exploitation, and CISA KEV status is false. Exploitation requires the attacker to capture HTCondor network data, which narrows likely scenarios to compromised networks, shared infrastructure, or insufficiently protected traffic paths.

Researcher notes

The provided evidence is sparse: no CVSS vector, CWE, exploit status, or detailed root cause is included. Validation should focus on version exposure and whether HTCondor network traffic could be captured in the deployment.

Mitigation direction

  • Upgrade HTCondor 9.0.x to 9.0.10 or later.
  • Upgrade HTCondor 9.1.x to 9.5.1 or later.
  • Review HTCondor vendor advisories for configuration-specific guidance.
  • Protect HTCondor network paths from untrusted traffic capture.

Validation and detection

  • Inventory HTCondor versions across schedulers, submit nodes, and workers.
  • Confirm no 9.0.x release older than 9.0.10 remains deployed.
  • Confirm no 9.1.x release older than 9.5.1 remains deployed.
  • Review network segmentation and traffic protection for HTCondor communications.
Prepared
Confidence
medium
Sources
4

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

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CVE-2021-45104 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
3Source links

CVSS and timeline data

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

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.