How severe is CVE-2023-32695?

CVE-2023-32695 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2023-32695 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-32695?

CVE-2023-32695 affects Socket Socket.io-parser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-32695?

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-2023-32695 published?

CVE-2023-32695 was published on 2023-05-27 and last updated on 2026-06-17.

CVE-2023-32695

CVE-2023-32695 is a high-severity vulnerability in Socket Socket.io-parser with a CVSS 3.x base score of 7.3. 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-754.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-754
Affected product: Socket Socket.io-parser
Published: 2023-05-27
Last modified: 2026-06-17

Description

socket.io parser is a socket.io encoder and decoder written in JavaScript complying with version 5 of socket.io-protocol. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. A patch has been released in version 4.2.3.

Frequently asked questions

What is CVE-2023-32695?: socket.io parser is a socket.io encoder and decoder written in JavaScript complying with version 5 of socket.io-protocol. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. A patch has been released in version 4.2.3.
How severe is CVE-2023-32695?: CVE-2023-32695 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2023-32695 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-32695?: CVE-2023-32695 affects Socket Socket.io-parser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-32695?: 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-2023-32695 published?: CVE-2023-32695 was published on 2023-05-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:socket:socket.io-parser:*:*:*:*:*:node.js:*:*

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