CVE detail
CVE-2023-22421
Out-of-bounds read vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier. The insufficient buffer size for the PLC program instructions leads to out-of-bounds read. As a result, opening a specially crafted project file may lead to information disclosure and/or arbitrary code execution.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
1 source links · newest first
The US Cybersecurity and Infrastructure Security Agency (CISA) published seven advisories this week covering vulnerabilities in industrial control systems (ICS) and supervisory control and data acquisition (SCADA) software from multiple vendors. Some of the flaws are rated critical and two of them already have public exploits. The impacted products include: Scadaflex II controllers made by […]
newswww.csoonline.comApr 7, 2023, 9:03 PM
Exploit code
Public exploit repository references
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0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2023-22419CVSS 7.8 · High
Out-of-bounds read vulnerability exists in Kostac PLC Programming Software (Former name: Koyo PLC Programming Software) Version 1.6.9.0 and earlier. When processing a comment bloc…
- CVE-2026-18020CVSS 5.3 · Medium
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to an off-by-one error in bounds checking.
- CVE-2026-17649CVSS 5.3 · Medium
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information due to an out-of-bounds read.
- CVE-2026-17226CVSS 5.4 · Medium
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information or cause a denial of service due to an out-of-bounds read.
- CVE-2026-17212CVSS 5.3 · Medium
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to cause a denial of service due to an out-of-bounds read.
- CVE-2026-16878CVSS 5.4 · Medium
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to an out-of-bounds read.