How severe is CVE-2018-11652?

CVE-2018-11652 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-2018-11652 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11652?

CVE-2018-11652 affects Cirt.net Nikto. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11652?

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-2018-11652 published?

CVE-2018-11652 was published on 2018-06-01 and last updated on 2026-06-17.

CVE-2018-11652

CVE-2018-11652 is a critical-severity vulnerability in Cirt.net Nikto with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-1236.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1236
Affected product: Cirt.net Nikto
Published: 2018-06-01
Last modified: 2026-06-17

Description

CSV Injection vulnerability in Nikto 2.1.6 and earlier allows remote attackers to inject arbitrary OS commands via the Server field in an HTTP response header, which is directly injected into a CSV report.

Frequently asked questions

What is CVE-2018-11652?: CSV Injection vulnerability in Nikto 2.1.6 and earlier allows remote attackers to inject arbitrary OS commands via the Server field in an HTTP response header, which is directly injected into a CSV report.
How severe is CVE-2018-11652?: CVE-2018-11652 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-2018-11652 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11652?: CVE-2018-11652 affects Cirt.net Nikto. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11652?: 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-2018-11652 published?: CVE-2018-11652 was published on 2018-06-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cirt.net:nikto:*:*:*:*:*:*:*:*

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