How severe is CVE-2016-0859?

CVE-2016-0859 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-0859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-0859?

CVE-2016-0859 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-0859?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2016-0859 published?

CVE-2016-0859 was published on 2016-01-15 and last updated on 2026-06-17.

CVE-2016-0859

CVE-2016-0859 is a critical-severity vulnerability in Advantech Webaccess with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 8% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Advantech Webaccess
Published: 2016-01-15
Last modified: 2026-06-17

Description

Integer overflow in the Kernel service in Advantech WebAccess before 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted RPC request.

Frequently asked questions

What is CVE-2016-0859?: Integer overflow in the Kernel service in Advantech WebAccess before 8.1 allows remote attackers to execute arbitrary code or cause a denial of service (stack-based buffer overflow) via a crafted RPC request.
How severe is CVE-2016-0859?: CVE-2016-0859 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-0859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-0859?: CVE-2016-0859 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-0859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-0859 published?: CVE-2016-0859 was published on 2016-01-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:advantech:webaccess:*:*:*:*:*:*:*:*

More vulnerabilities in Advantech Webaccess

CVE-2014-9208 — Critical (CVSS 10.0): Multiple stack-based buffer overflows in unspecified DLL files in Advantech WebAccess before 8.0.1 allow remote…
CVE-2021-38389 — Critical (CVSS 9.8): Advantech WebAccess versions 9.02 and prior are vulnerable to a stack-based buffer overflow, which may allow an…
CVE-2021-33023 — Critical (CVSS 9.8): Advantech WebAccess versions 9.02 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker…
CVE-2021-38408 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper…
CVE-2020-12019 — Critical (CVSS 9.8): WebAccess Node Version 8.4.4 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to…
CVE-2020-12022 — Critical (CVSS 9.8): Advantech WebAccess Node, Version 8.4.4 and prior, Version 9.0.0. An improper validation vulnerability exists that…

All CVEs affecting Advantech Webaccess →

Other CWE-189 (Numeric Errors) vulnerabilities

CVE-2015-8396 — Critical (CVSS 10.0): Integer overflow in the ImageRegionReader::ReadIntoBuffer function in…
CVE-2015-7205 — Critical (CVSS 10.0): Integer underflow in the RTPReceiverVideo::ParseRtpPacket function in Mozilla Firefox before 43.0 and Firefox ESR 38.x…
CVE-2015-6575 — Critical (CVSS 10.0): SampleTable.cpp in libstagefright in Android before 5.1.1 LMY48I does not properly consider integer promotion, which…
CVE-2015-3864 — Critical (CVSS 10.0): Integer underflow in the MPEG4Extractor::parseChunk function in MPEG4Extractor.cpp in libstagefright in mediaserver in…
CVE-2015-3836 — Critical (CVSS 10.0): The Parse_wave function in arm-wt-22k/lib_src/eas_mdls.c in the Sonivox DLS-to-EAS converter in Android before 5.1.1…
CVE-2015-3834 — Critical (CVSS 10.0): Multiple integer overflows in the BnHDCP::onTransact function in media/libmedia/IHDCP.cpp in libstagefright in Android…

Browse all CWE-189 (Numeric Errors) vulnerabilities →