How severe is CVE-2020-7693?

CVE-2020-7693 has a CVSS 3.x base score of 5.3, rated medium 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 low.

Is CVE-2020-7693 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-7693?

CVE-2020-7693 affects Sockjs Project Sockjs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-7693?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-7693 published?

CVE-2020-7693 was published on 2020-07-09 and last updated on 2026-06-17.

CVE-2020-7693

CVE-2020-7693 is a medium-severity vulnerability in Sockjs Project Sockjs with a CVSS 3.x base score of 5.3. 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-755.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Sockjs Project Sockjs
Published: 2020-07-09
Last modified: 2026-06-17

Description

Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.

Frequently asked questions

What is CVE-2020-7693?: Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.
How severe is CVE-2020-7693?: CVE-2020-7693 has a CVSS 3.x base score of 5.3, rated medium 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 low.
Is CVE-2020-7693 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-7693?: CVE-2020-7693 affects Sockjs Project Sockjs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-7693?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-7693 published?: CVE-2020-7693 was published on 2020-07-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sockjs_project:sockjs:*:*:*:*:*:node.js:*:*

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