CVE-2026-63035 (GCVE-0-2026-63035)
Vulnerability from cvelistv5 – Published: 2026-07-30 21:56 – Updated: 2026-07-31 15:45
VLAI
EPSS
VEX
Title
o6 Automation open62541 Use After Free
Summary
A heap use-after-free vulnerability in the TransferSubscriptions service
in open62541 may allow an authenticated attacker to cause a denial of
service or potentially execute arbitrary code.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| o6 Automation | open62541 |
Affected:
1.3.0 , ≤ 1.3.17
(custom)
Affected: 1.4.0 , ≤ 1.4.16 (custom) Affected: 1.5.0 , ≤ 1.5.4 (custom) Affected: master |
Credits
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The new \\nversion can be obtained by contacting o6 Automation\u0026nbsp;\u0026nbsp;\u003ca href=\\\"https://www.o6-automation.com/contact\\\"\u003ehttps://www.o6-automation.com/contact\u003c/a\u003e\\nor by downloading from the \\nfollowing locations:\u003cbr\u003e\u003ca href=\\\"https://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f\\\"\u003ehttps://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f\u003c/a\u003e\u003cbr\u003e\u003ca href=\\\"https://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60\\\"\u003ehttps://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60\u003c/a\u003e\u003cbr\u003e\u003ca href=\\\"https://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e\\\"\u003ehttps://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e\u003c/a\u003e\u003cbr\u003e\u003ca href=\\\"https://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df\\\"\u003ehttps://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df\u003c/a\u003e\u003c/p\u003e\\n\u003cp\u003eFor more information, see open62541 \\nSecurity Advisories SA-2026-0012, SA-2026-0014, and SA-2026-0015 or \\ncontact o6 Automation:\u0026nbsp;\u003ca href=\\\"https://www.o6-automation.com/contact\\\"\u003ehttps://www.o6-automation.com/contact\u003c/a\u003e\u003c/p\u003e\"}]}], \"credits\": [{\"lang\": \"en\", \"value\": \"Abhinav Agarwal reported this vulnerability to CISA.\", \"type\": \"finder\"}], \"source\": {\"advisory\": \"ICSA-26-211-08\", \"discovery\": \"EXTERNAL\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.4\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-63035\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-31T15:44:46.201061Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-31T15:45:15.881Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-63035\", \"assignerOrgId\": \"7d14cffa-0d7d-4270-9dc0-52cabd5a23a6\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"icscert\", \"dateReserved\": \"2026-07-27T15:02:47.801Z\", \"datePublished\": \"2026-07-30T21:56:04.345Z\", \"dateUpdated\": \"2026-07-31T15:45:48.062Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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