CVE-2020-36048

CVE-2020-36048 is a high-severity vulnerability in Socket Engine.io with a CVSS 3.x base score of 7.5. 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-400.

Key facts

Description

Engine.IO before 4.0.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.

Frequently asked questions

What is CVE-2020-36048?
Engine.IO before 4.0.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.
How severe is CVE-2020-36048?
CVE-2020-36048 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-36048 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36048?
CVE-2020-36048 affects Socket Engine.io. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-36048?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-36048 published?
CVE-2020-36048 was published on 2021-01-08 and last updated on 2026-06-17.

References

Affected products (1)

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