CVE-2026-85425

MOOS-IvP iSay through 24.8.1 contains a remote code execution vulnerability in the SAY_MOOS variable handler that passes unsanitized text to a shell command. Attackers can publish SAY_MOOS messages containing backticks or command substitution syntax to execute arbitrary commands as the iSay process user.

CVSS 4.0

9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-25)

CWE

CWE-78

Published

2026-09-03

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• mit:moos-ivp

References

• https://github.com/moos-ivp/moos-ivp
• https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/iSay/Sayer.cpp#L416
• https://github.com/moos-ivp/moos-ivp/commit/ed3a44131fd3e5528602f20adc37ba82273c1cd8
• https://github.com/moos-ivp/moos-ivp/pull/120
• https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-isay-command-injection-via-say-moos

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