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CVE-2021-45103

26
FAUCET Score

CVE-2021-45103 is a high-severity vulnerability affecting HTCondor versions 9.0.x before 9.0.10 and 9.1.x before 9.5.1, allowing an authenticated attacker to access files stored in S3 cloud storage that HTCondor was instructed to transfer. With a CVSS score of 8.1, this vulnerability has a low attack complexity and can lead to high confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.9.4, < 9.0.10CPE matchmatch criteria
cpe:2.3:a:wisc:htcondor:*:*:*:*:*:*:*:*
>= 9.1.0, < 9.6.0CPE matchmatch criteria
cpe:2.3:a:wisc:htcondor:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 51st percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

research.cs.wisc.edu / htcondor/security/vulnerabilities/HTCONDOR-2021-0005
Broken Link
research.cs.wisc.edu / htcondor/security/vulnerabilities/HTCONDOR-2022-0001
MitigationVendor Advisory