CVE-2018-6534
CVE-2018-6534 is a medium-severity vulnerability in Icinga with a CVSS 3.x base score of 6.5. 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-476.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-476
- Affected product: Icinga
- Published:
- Last modified:
Description
An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an attacker can cause a NULL pointer dereference, which can cause the product to crash.
Frequently asked questions
- What is CVE-2018-6534?
- An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an attacker can cause a NULL pointer dereference, which can cause the product to crash.
- How severe is CVE-2018-6534?
- CVE-2018-6534 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2018-6534 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-6534?
- CVE-2018-6534 affects Icinga. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-6534?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-6534 published?
- CVE-2018-6534 was published on 2018-02-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:icinga:icinga:*:*:*:*:*:*:*:*
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Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →