CVE-2026-40635: CWE-377: Insecure Temporary File in Dell PowerScale OneFS
Affects Dell PowerScale OneFSSource CVE Database V5
Not known to be exploited · CVSS 5.4 Medium.
Data as of 10/24/2026, 22:16:03 UTC
- Exploitation
Not in CISA KEV, no exploitation reported
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:LWhat to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| DellPowerScale OneFS | Affected
| Fixed in
|
AI-suggested
Until a patch is available, monitor vendor communications for updates.
Description
Dell PowerScale OneFS versions 9.12.0.0 through 9.13.1.0 contain an Insecure Temporary File vulnerability. A low privileged remote attacker could potentially exploit this vulnerability, leading to denial of service and information tampering.
Impact
An attacker with low privileges remotely can exploit this vulnerability to cause denial of service and tamper with information, affecting system integrity and availability. Confidentiality is not impacted. There are no known exploits in the wild at this time.
Weaknesses
- CWE-377Insecure Temporary File (opens in a new tab)
Class weaknessOWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
Creating and using insecure temporary files can leave application and system data vulnerable to attack.