CVE-2018-8833: advantech webaccess_hmi_designer Heap-based Buffer Overflow
CVSS: 7.8v3.1HighModified
Published 25-04-2018Last modified 17-09-2024
Vulnerability summary
CVE-2018-8833 is a high (CVSS 7.8) Heap-based Buffer Overflow vulnerability in advantech webaccess_hmi_designer. EPSS estimates a 2.20% chance of exploitation in the next 30 days, higher than 82.3% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
2.20%
0%100%
Low · -0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 25-04-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
Heap-based buffer overflow vulnerabilities in Advantech WebAccess HMI Designer 2.1.7.32 and prior caused by processing specially crafted .pm3 files may allow remote code execution.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.20%
Chance of exploitation in the next 30 days
Percentile
82%
Versus all other CVEs
30-day change
-0.02 pp
From 2.22% on 21-09-2026
21-09-202621-10-2026
EPSS score2.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Advantech1 product
- webaccess_hmi_designer≤ 2.1.7.32
Ics-cert1 product
- advantech webaccess hmi designerAdvantech WebAccess HMI Designer, Version 2.1.7.32 and prior.
2 vendors · 2 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-18-114-03X Refsource MISCThird Party AdvisoryUS Government Resource