CVE Explorer
CVE-2026-1301
In builds with PubSub and JSON enabled, a crafted JSON message can cause the decoder to write beyond a heap-allocated array before authentication, reliably crashing the process and corrupting memory.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Open62541","vendor":"o6 Automation GmbH","versions":[{"lessThan":"1.5-rc2","status":"affected","version":"1.5-rc1","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ac94d274b5784444a7fd3024df2606e35491298afaf49fe6dcb2eed3227d4b50 · sha256:25a12e0962f566e6… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ac94d274b5784444a7fd3024df2606e35491298afaf49fe6dcb2eed3227d4b50 · sha256:25a12e0962f566e6… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ac94d274b5784444a7fd3024df2606e35491298afaf49fe6dcb2eed3227d4b50 · sha256:25a12e0962f566e6… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["government-resource"],"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-036-03"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ac94d274b5784444a7fd3024df2606e35491298afaf49fe6dcb2eed3227d4b50 · sha256:25a12e0962f566e6… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.