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CVE-2021-33634

18
FAUCET Score

CVE-2021-33634 describes a denial-of-service (DoS) vulnerability in iSulad, specifically when using the default lcr+lxc runtime to execute malicious container images. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring user interaction, and primarily impacting availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.9-6CPE matchmatch criteria
cpe:2.3:a:openeuler:icr:*:*:*:*:*:*:*:*
>= 2.1.0, < 2.1.2-3CPE matchmatch criteria
cpe:2.3:a:openeuler:icr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
9.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 12th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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

gitee.com / src-openeuler/lcr/pulls/251/files
Patch
gitee.com / src-openeuler/lcr/pulls/257/files
Patch
openeuler.org / en/security/security-bulletins/detail
Vendor Advisory