CVE-2021-33638: Run copy with container in a malicious directory may cause container escaping
Vulnerability summary
CVE-2021-33638 is a high (CVSS 8.4) Improper Initialization vulnerability in openeuler isula. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 12% of scored vulnerabilities.
Not severe (CVSS 8.4, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 29-10-2023PublishedVulnerability first disclosed.
- 09-09-2024Last modifiedVulnerability information updated.
Description
When the isula cp command is used to copy files from a container to a host machine and the container is controlled by an attacker, the attacker can escape the container.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST6.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:NDiffers
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.21% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
1 vendor · 2 products