CVE-2022-32527
Published: 30 January 2023
Summary
CVE-2022-32527 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Schneider-Electric Interactive Graphical Scada System. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 16.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A CWE-120 buffer copy vulnerability without size checking affects the IGSS Data Server component IGSSdataServer.exe in versions prior to V15.0.0.22170. The flaw produces a stack-based buffer overflow that can be triggered by specially crafted alarm cache data messages, carrying a CVSS 3.1 score of 9.8.
An unauthenticated remote attacker can send malicious messages over the network to trigger the overflow and achieve remote code execution with full control over the affected server process. No user interaction or credentials are required.
Schneider Electric security notice SEVD-2022-165-01 addresses the issue and directs users to upgrade IGSS Data Server to version 15.0.0.22170 or later.
EPSS for the CVE rose from lower values to a peak of 0.0567 before receding to the current 0.0177, indicating a period of increased exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-35598
Vulnerability details
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could cause a stack-based buffer overflow, potentially leading to remote code execution when an attacker sends specially crafted alarm cache data messages. Affected Products: IGSS Data Server -…
more
IGSSdataServer.exe (Versions prior to V15.0.0.22170)
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.