SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-6911

The VBWinExec function in Node\AspVBObj.dll in Advantech WebAccess 8.3.0 allows remote attackers to execute arbitrary OS commands via a single argument (aka the command parameter).

EXPLOITCRITICAL 9.8EPSS 12.8%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 12.8%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.

Description

The VBWinExec function in Node\AspVBObj.dll in Advantech WebAccess 8.3.0 allows remote attackers to execute arbitrary OS commands via a single argument (aka the command parameter).

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
12.80% probability · 96th percentile
Public exploits
1 in Exploit-DB · first 13 February 2018
CISA KEV
Not listed
Weakness
CWE-78
Affected
advantech/webaccess
Source
cve@mitre.org
EPSS trend
0%8%15%21 September 2026: 9.97%22 September 2026: 12.80%27 October 2026: 12.80%21 September 202627 October 2026

EPSS moved from 10.0% on 21 September 2026 to 12.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-44031source ↗Advantech WebAccess 8.3.0 - Remote Code Executionwindows · Nassim Asrirremote13 February 2018no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.