How severe is CVE-2018-12268?

CVE-2018-12268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-12268 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12268?

CVE-2018-12268 affects Acccheck Project Acccheck.pl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12268?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-12268 published?

CVE-2018-12268 was published on 2018-06-13 and last updated on 2026-06-17.

CVE-2018-12268

CVE-2018-12268 is a critical-severity vulnerability in Acccheck Project Acccheck.pl with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Acccheck Project Acccheck.pl
Published: 2018-06-13
Last modified: 2026-06-17

Description

acccheck.pl in acccheck 0.2.1 allows Command Injection via shell metacharacters in a username or password file, as demonstrated by injection into an smbclient command line.

Frequently asked questions

What is CVE-2018-12268?: acccheck.pl in acccheck 0.2.1 allows Command Injection via shell metacharacters in a username or password file, as demonstrated by injection into an smbclient command line.
How severe is CVE-2018-12268?: CVE-2018-12268 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-12268 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12268?: CVE-2018-12268 affects Acccheck Project Acccheck.pl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12268?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-12268 published?: CVE-2018-12268 was published on 2018-06-13 and last updated on 2026-06-17.

References

http://b3n7s.github.io/acccheck-command-injection.html

Affected products (1)

cpe:2.3:a:acccheck_project:acccheck.pl:0.2.1:*:*:*:*:*:*:*

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