How severe is CVE-2023-30575?

CVE-2023-30575 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-30575 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-30575?

CVE-2023-30575 affects Apache Guacamole. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-30575?

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

When was CVE-2023-30575 published?

CVE-2023-30575 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2023-30575

CVE-2023-30575 is a medium-severity vulnerability in Apache Guacamole 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-131.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-131
Affected product: Apache Guacamole
Published: 2023-06-07
Last modified: 2026-06-17

Description

Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.

Frequently asked questions

What is CVE-2023-30575?: Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.
How severe is CVE-2023-30575?: CVE-2023-30575 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-30575 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-30575?: CVE-2023-30575 affects Apache Guacamole. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-30575?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-30575 published?: CVE-2023-30575 was published on 2023-06-07 and last updated on 2026-06-17.

References

https://lists.apache.org/thread/tn63n2lon0h5p45oft834t1dqvvxownv

Affected products (1)

cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*

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