How severe is CVE-2017-16926?

CVE-2017-16926 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-2017-16926 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-16926?

CVE-2017-16926 affects Ohcount Project Ohcount. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-16926?

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-2017-16926 published?

CVE-2017-16926 was published on 2017-11-22 and last updated on 2026-06-17.

CVE-2017-16926

CVE-2017-16926 is a critical-severity vulnerability in Ohcount Project Ohcount 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: 10.0
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Ohcount Project Ohcount
Published: 2017-11-22
Last modified: 2026-06-17

Description

Ohcount 3.0.0 is prone to a command injection via specially crafted filenames containing shell metacharacters, which can be exploited by an attacker (providing a source tree for Ohcount processing) to execute arbitrary code as the user running Ohcount.

Frequently asked questions

What is CVE-2017-16926?: Ohcount 3.0.0 is prone to a command injection via specially crafted filenames containing shell metacharacters, which can be exploited by an attacker (providing a source tree for Ohcount processing) to execute arbitrary code as the user running Ohcount.
How severe is CVE-2017-16926?: CVE-2017-16926 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-2017-16926 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-16926?: CVE-2017-16926 affects Ohcount Project Ohcount. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-16926?: 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-2017-16926 published?: CVE-2017-16926 was published on 2017-11-22 and last updated on 2026-06-17.

References

https://bugs.debian.org/882372

Affected products (1)

cpe:2.3:a:ohcount_project:ohcount:3.0.0:*:*:*:*:*:*:*

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