How severe is CVE-2016-0857?

CVE-2016-0857 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-2016-0857 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-0857?

CVE-2016-0857 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-0857?

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-2016-0857 published?

CVE-2016-0857 was published on 2016-01-15 and last updated on 2026-06-17.

CVE-2016-0857

CVE-2016-0857 is a critical-severity vulnerability in Advantech Webaccess with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 28% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 28% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Advantech Webaccess
Published: 2016-01-15
Last modified: 2026-06-17

Description

Multiple heap-based buffer overflows in Advantech WebAccess before 8.1 allow remote attackers to execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2016-0857?: Multiple heap-based buffer overflows in Advantech WebAccess before 8.1 allow remote attackers to execute arbitrary code via unspecified vectors.
How severe is CVE-2016-0857?: CVE-2016-0857 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-2016-0857 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 28% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-0857?: CVE-2016-0857 affects Advantech Webaccess. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-0857?: 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-2016-0857 published?: CVE-2016-0857 was published on 2016-01-15 and last updated on 2026-06-17.

References

Affected products (1)

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

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