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01 Record

CVE-2022-2837

A flaw was found in coreDNS. This flaw allows a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match

MediumPUBLISHEDCNA: redhat
CNA base score6.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

02 Description

A flaw was found in coreDNS. This flaw allows a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.6% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-03-03 00:00Z3 YR AGO
Last updated
2025-03-07 18:43Z1 YR AGO
Reserved
2022-08-16
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Medium (CVSS 6.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses
  • CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base
  • CWE-923Improper Restriction of Communication Channel to Intended EndpointsClass
  • CWE-427Uncontrolled Search Path ElementBase
Data version
5.1
Document digest
af8efd74161d9ae72166fb23602082074015caccedce2184ac5d7221cd5330a1

05 Affected products

VendorProductVersionsPlatforms
n/acoreDNSunknown—

06 References