CVE-2021-27480: deltaww industrial_automation_commgr Stack-based Buffer Overflow
CVSS: 9.8v3.1CriticalModified
Published 27-04-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-27480 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in deltaww industrial_automation_commgr. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.27%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 27-04-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
1.27%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.27% on 21-09-2026
21-09-202621-10-2026
EPSS score1.27%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Deltaww1 product
1 vendor · 1 product
References
1 links
us-cert.cisa.gov/ics/advisories/icsa-21-110-03X Refsource MISCThird Party AdvisoryUS Government Resource