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High 7.5Published Aug 4, 2026
CVE-2026-67859Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
Buffer Overflow vulnerability in open62541 v1.5.5 allows a remote attacker to cause a denial of service via the Discovery/LDS handling.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N
- Weakness (CWE)
- CWE-120
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Awaiting Analysis
- Record last updated
- Aug 5, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
References
- https://github.com/open62541/open62541/blob/master/src/server/ua_services_discovery.c
- https://github.com/open62541/open62541/blob/master/src/server/ua_discovery_mdns.c
- https://github.com/open62541/open62541/issues/8095
- https://github.com/open62541/open62541/blob/master/examples/discovery/server_lds.c
- https://github.com/open62541/open62541/blob/master/src/util/ua_util.c
The CVE record on cve.org NVD's entry
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