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CVE-2023-4785
Denial of Service in gRPC Core
High7.5EPSS 0.77%
- Published
- Updated
- Reserved
- Assigned by
Description
Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GoogleCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.77% · top 44% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIgrpcioGHSA-p25m-jpj4-qcrr (opens in a new tab)
- RubyGemsgrpcGHSA-p25m-jpj4-qcrr (opens in a new tab)
References (5)
- https://github.com/grpc/grpc/pull/33656 (opens in a new tab)x_transferred
- https://github.com/grpc/grpc/pull/33667 (opens in a new tab)x_transferred
- https://github.com/grpc/grpc/pull/33669 (opens in a new tab)x_transferred
- https://github.com/grpc/grpc/pull/33670 (opens in a new tab)x_transferred
- https://github.com/grpc/grpc/pull/33672 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-p25m-jpj4-qcrr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-4785)Record last updated .