Denial of service (DoS) in opcua
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.
Summary
The package opcua from 0.0.0 are vulnerable to Denial of Service (DoS) due to a missing limitation on the number of received chunks - per single session or in total for all concurrent sessions. An attacker can exploit this vulnerability by sending an unlimited number of huge chunks (e.g. 2GB each) without sending the Final closing chunk.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | opcua | 0.0.0 and later | — | No fix listed | CNA |
| — | opcua (crates.io) | before 0.11.0 | 0.11.0 | Patch available | GHSA-8mx2-gqx9-rm7f |
- opcua Vendor— Affected 0.0.0 and later Fixed in — No fix listed CNA
- opcua (crates.io) Vendor— Affected before 0.11.0 Fixed in 0.11.0 Patch available GHSA-8mx2-gqx9-rm7f
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:opcua_project:opcua:*:*:*:*:*:rust:*:* | 0.0.0 | Vulnerable | Opcua Project |
- cpe:2.3:a:opcua_project:opcua:*:*:*:*:*:rust:*:* Versions 0.0.0 Vulnerable ·Opcua Project
Remediation
- Fix · GHSA-8mx2-gqx9-rm7f opcua (crates.io) Fixed in 0.11.0 Advisory →
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
opcua unspecified
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2022-08997 Denial of service (DoS) in opcuaPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2022-25888
- 2026-10-03 Alias added: GHSA-8mx2-gqx9-rm7f
References
More Opcua Project Opcua vulnerabilities
- TI-2022-09458 Denial of service (DoS) in opcua CVSS 3.1HIGH 7.5
- TI-2022-08997 Denial of service (DoS) in opcua CVSS 3.1HIGH 7.5
Sources
- CVE-2022-25888 · CVE Program
- CVE-2022-25888 · NVD
- FIRST EPSS
- GHSA-8mx2-gqx9-rm7f · GitHub Advisory Database · CC BY 4.0
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