How severe is CVE-2021-45104?

CVE-2021-45104 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2021-45104 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45104?

CVE-2021-45104 affects Wisc Htcondor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45104?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-45104 published?

CVE-2021-45104 was published on 2022-04-06 and last updated on 2026-06-17.

CVE-2021-45104

CVE-2021-45104 is a high-severity vulnerability in Wisc Htcondor with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Wisc Htcondor
Published: 2022-04-06
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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 attacker who can capture HTCondor network data can interfere with users' jobs and data.
How severe is CVE-2021-45104?: CVE-2021-45104 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2021-45104 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45104?: CVE-2021-45104 affects Wisc Htcondor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45104?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-45104 published?: CVE-2021-45104 was published on 2022-04-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wisc:htcondor:*:*:*:*:*:*:*:*

More vulnerabilities in Wisc Htcondor

CVE-2021-25311 — Critical (CVSS 9.9): condor_credd in HTCondor before 8.9.11 allows Directory Traversal outside the SEC_CREDENTIAL_DIRECTORY_OAUTH directory,…
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CVE-2022-26110 — High (CVSS 8.8): An issue was discovered in HTCondor 8.8.x before 8.8.16, 9.0.x before 9.0.10, and 9.1.x before 9.6.0. When a user…
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CVE-2021-25312 — High (CVSS 8.8): HTCondor before 8.9.11 allows a user to submit a job as another user on the system, because of a flaw in the IDTOKENS…
CVE-2014-8126 — High (CVSS 8.8): The scheduler in HTCondor before 8.2.6 allows remote authenticated users to execute arbitrary code.

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