CVE-2020-19695
CVE-2020-19695 is a critical-severity vulnerability in F5 Njs 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-120.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (68th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-120
- Affected product: F5 Njs
- Published:
- Last modified:
Description
Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via the njs_object_property parameter of the njs/njs_vm.c function.
Frequently asked questions
- What is CVE-2020-19695?
- Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via the njs_object_property parameter of the njs/njs_vm.c function.
- How severe is CVE-2020-19695?
- CVE-2020-19695 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-2020-19695 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-19695?
- CVE-2020-19695 affects F5 Njs. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-19695?
- 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-2020-19695 published?
- CVE-2020-19695 was published on 2023-04-04 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:f5:njs:*:*:*:*:*:*:*:*
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