PatchTheCVECVE-2017-12706: A stack-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817
CVE-2017-12706 is a critical-severity flaw (CVSS 9.8) affecting webaccess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A stack-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-12706?
webaccess: upgrade to newer than 8.2. Exact commands for each OS are on this page.
Is CVE-2017-12706 being exploited?
CVE-2017-12706 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-12706 affect?
CVE-2017-12706 affects webaccess. Severity is critical (CVSS 9.8). A stack-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data p
How urgent is CVE-2017-12706?
Priority 61/100. Critical severity; Remotely exploitable, no login, no user action
Software pages
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