CVE-2021-45101

An issue was discovered in HTCondor before 8.8.15, 9.0.x before 9.0.4, and 9.1.x before 9.1.2. Using standard command-line tools, a user with only READ access to an HTCondor SchedD or Collector daemon can discover secrets that could allow them to control other users' jobs and/or read their data.

Published: 2021-12-16 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-45101 is rated Moderate Risk (52.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.94%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-45101

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.36% 0.94% +0.57%
2 2026-01-26 0.30% 0.36% +0.06%
3 2025-10-24 — 0.30% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-45101

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 5.2 [email protected]
5.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 4.9 [email protected]

Weakness enumeration for CVE-2021-45101

OS Trackers for CVE-2021-45101

vendor priority summary link
debian not yet assigned CVE-2021-45101 not yet assigned priority: Debian including 1 source packages (condor), 3 status rows across 3 suites (forky, sid, trixie): resolved 3. https://security-tracker.debian.org/tracker/CVE-2021-45101
ubuntu medium CVE-2021-45101 medium priority: Ubuntu including 1 source packages (condor), 9 status rows across 9 suites (bionic, focal, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 7, ignored 2. https://ubuntu.com/security/CVE-2021-45101

Affected software / configurations for CVE-2021-45101

Vendor Product Version Raw CPE
wisc htcondor <= 8.8.13 cpe:2.3:a:wisc:htcondor:*:*:*:*:*:*:*:*
wisc htcondor >= 9.0.0, <= 9.0.2 cpe:2.3:a:wisc:htcondor:*:*:*:*:*:*:*:*
wisc htcondor 9.1.0 cpe:2.3:a:wisc:htcondor:9.1.0:*:*:*:*:*:*:*

References for CVE-2021-45101

cvelogic Threat Intelligence