VulnerabilityDeferred

CVE-2021-46686

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in acmailer CGI ver.4.0.3 and earlier and acmailer DB ver.1.1.5 and earlier.

CRITICAL 9.8EPSS 1.42%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in acmailer CGI ver.4.0.3 and earlier and acmailer DB ver.1.1.5 and earlier. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker.

CVSS 3.0: 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.42% probability · 71th percentile
CISA KEV: Not listed
Weakness: CWE-78
Source: vultures@jpcert.or.jp

References

https://acmailer.jp/info/de.cgi?id=103
https://jvn.jp/en/jp/JVN96957439/
https://www.acmailer.jp/info/de.cgi?id=102

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.