Denial of service (DoS) in open62541/open62541
Priority LOW 36CWE-770Published · Updated
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. Impact type from CWE-770.
Summary
The package open62541/open62541 before 1.2.5, from 1.3-rc1 and before 1.3.1 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
EPSS 0.01445 73rd percentileScored 2026-11-07
Fix Fixed open62541/open62541: 1.2.5, 1.3.1
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 |
|---|---|---|---|---|---|
| — | open62541/open62541 | before 1.2.5; 1.3-rc1 and later; before 1.3.1 | 1.2.5, 1.3.1 | Patch available | CNA |
- open62541/open62541 Vendor— Affected before 1.2.5; 1.3-rc1 and later; before 1.3.1 Fixed in 1.2.5, 1.3.1 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*:* | before 1.2.5 | Vulnerable | open62541 |
| cpe:2.3:a:open62541:open62541:1.3:rc1:*:*:*:*:*:* | 1.3 rc1 | Vulnerable | open62541 |
| cpe:2.3:a:open62541:open62541:1.3:rc2:*:*:*:*:*:* | 1.3 rc2 | Vulnerable | open62541 |
| cpe:2.3:a:open62541:open62541:1.3:rc2-ef:*:*:*:*:*:* | 1.3 rc2-ef | Vulnerable | open62541 |
| cpe:2.3:a:open62541:open62541:1.3:rc2-ef2:*:*:*:*:*:* | 1.3 rc2-ef2 | Vulnerable | open62541 |
| cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* | 37 | Vulnerable | Fedoraproject |
- cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*:* Versions before 1.2.5 Vulnerable ·open62541
- cpe:2.3:a:open62541:open62541:1.3:rc1:*:*:*:*:*:* Versions 1.3 rc1 Vulnerable ·open62541
- cpe:2.3:a:open62541:open62541:1.3:rc2:*:*:*:*:*:* Versions 1.3 rc2 Vulnerable ·open62541
- cpe:2.3:a:open62541:open62541:1.3:rc2-ef:*:*:*:*:*:* Versions 1.3 rc2-ef Vulnerable ·open62541
- cpe:2.3:a:open62541:open62541:1.3:rc2-ef2:*:*:*:*:*:* Versions 1.3 rc2-ef2 Vulnerable ·open62541
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA open62541/open62541 Fixed in 1.2.5, 1.3.1
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-25761
- 2026-10-03 Alias added: GHSA-p69w-fx96-62pg
References
Sources
- CVE-2022-25761 · CVE Program
- CVE-2022-25761 · NVD
- FIRST EPSS
- GHSA-p69w-fx96-62pg · GitHub Advisory Database · CC BY 4.0
- CVE-2022-25761 · Red Hat security data · CC BY 4.0
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