CVE-2021-3586 json
A flaw was found in servicemesh-operator.
published 2022-08-22 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26894
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
A flaw was found in servicemesh-operator. The NetworkPolicy resources installed for Maistra do not properly specify which ports may be accessed, allowing access to all ports on these resources from any pod. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Patch / fix
- servicemesh-operator service mesh 2.0 2.0.5-3.el8
red hat advisories RHSA-2021:2380
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2021-3586 updated cvss 9.8
servicemesh-operator: NetworkPolicy resources incorrectly specify ports for ingress resources
-
Red Hat OpenShift Service Mesh 2.0 servicemesh-operator 2.0.5-3.el8fixed: vendor fix “Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update as soon as possible.” RHSA-2021:2380
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.06% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- n/a servicemesh-operator
Classification
- Weakness
-
- CWE-1188 Initialization of a Resource with an Insecure Default
References
-
bugzilla.redhat.com
/show_bug.cgi?id=1967738
issue-tracking, vendor-advisory
-
access.redhat.com
/security/cve/CVE-2021-3586
vendor-advisory
Sources
- CVE List CVE-2021-3586
- NVD CVE-2021-3586
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.