CVE-2018-18999: advantech webaccess\/scada Improper Input Validation
CVSS: 7.5v2.0HighModified
Published 19-12-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-18999 is a high (CVSS 7.5) Improper Input Validation vulnerability in advantech webaccess\/scada. EPSS estimates a 2.31% chance of exploitation in the next 30 days, higher than 83.2% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v2.0 (NVD)EPSS score
2.31%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 19-12-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
WebAccess/SCADA, WebAccess/SCADA Version 8.3.2 installed on Windows 2008 R2 SP1. Lack of proper validation of user supplied input may allow an attacker to cause the overflow of a buffer on the stack.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.31%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.31% on 21-09-2026
21-09-202621-10-2026
EPSS score2.31%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Advantech1 product
- webaccess\/scada8.3.2
1 vendor · 1 product
References
3 links- ics-cert.us-cert.gov/advisories/ICSA-18-352-02X Refsource MISCThird Party AdvisoryUS Government Resource