What is CVE-2023-33953?

CVE-2023-33953 is a high-severity vulnerability in Google Grpc, classified under Excessive Iteration. CVSS score: 7.5/10. Published 2023-08-09.

How severe is CVE-2023-33953?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2023-33953 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Google Grpc

CVE-2023-33953

gRPC contains a vulnerability that allows hpack table accounting errors could lead to unwanted disconnects between clients and servers in exceptional cases/ Three vectors were found that allow the following DOS attacks: - Unbounded memory…

EPSS: 0.001 (31.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Google Grpc — versions 0

Weakness classification (CWE)

Public proof-of-concept exploits

References

cloud.google.com/support/bulletins

Frequently asked questions

What is CVE-2023-33953?: CVE-2023-33953 is a high-severity vulnerability in Google Grpc, classified under Excessive Iteration. CVSS score: 7.5/10. Published 2023-08-09.
How severe is CVE-2023-33953?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-33953 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.