CVE-2026-9852CWE-1236

CVE-2026-9852

published September 3, 2026

CVSS
4.6
EPSS
0%
Percentile
8.6
In the wild
Unconfirmed
What it is

A CSV injection vulnerability exists in SYS600. Injected malicious formulas can add or modify data to the spreadsheet, insert links, exfiltrate data, and in some cases, depending on how the user has their environment configured, execute malicious code on the user’s machine. To exploit this issue attackers would need a way to create arbitrary log messages. This could be achieved through normal functionality via SCIL scripts, a log injection vulnerability, or via the SYS600 broker. This vulnerability affects all Windows users regardless of their privilege level who can run the Notify service and export the log.

The record
Technical detail
CVSS
4.6 · NONE
CVSS v4.0
4.6 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00189 · 8.6th percentile
Weakness
CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
Published
2026-09-03T17:06Z
References (1)
EPSS history
Timeline
  • 04 SEP 03:45Z
    EPSS moved — → 0%
    epss
  • 03 SEP 07:53Z
    A CSV injection vulnerability exists in SYS600
    cvelistv5