CVE-2021-28966
HIGH
7.5
CVSS Score
Published: July 27, 2021 at 04:01 PM UTC
Updated: June 17, 2026 at 03:47 AM UTC
1 product affected across 1 vendorRuby· also runs on 1 platform
Using N/A by N/A?
Get instant alerts when new vulnerabilities affect N/A - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 58%
Description
In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ruby· Ruby Langrubygems
95%v < 2.7.33.0.0 ≤ v < 3.0.1
Affected range stops below 2.7.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.0.1, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)
Runs on — not affected
The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://hackerone.com/reports/1131465x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210902-0004/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-22
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card