CVE-2023-30576
CVE-2023-30576 is a medium-severity vulnerability in Apache Guacamole with a CVSS 3.x base score of 6.8. 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-416.
Key facts
- Severity: Medium (CVSS 3.x base score 6.8)
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Apache Guacamole
- Published:
- Last modified:
Description
Apache Guacamole 0.9.10 through 1.5.1 may continue to reference a freed RDP audio input buffer. Depending on timing, this may allow an attacker to execute arbitrary code with the privileges of the guacd process.
Frequently asked questions
- What is CVE-2023-30576?
- Apache Guacamole 0.9.10 through 1.5.1 may continue to reference a freed RDP audio input buffer. Depending on timing, this may allow an attacker to execute arbitrary code with the privileges of the guacd process.
- How severe is CVE-2023-30576?
- CVE-2023-30576 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2023-30576 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-30576?
- CVE-2023-30576 affects Apache Guacamole. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-30576?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-30576 published?
- CVE-2023-30576 was published on 2023-06-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*
More vulnerabilities in Apache Guacamole
- CVE-2021-43999 — High (CVSS 8.8): Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses received from a SAML identity provider. If SAML…
- CVE-2017-3158 — High (CVSS 8.1): A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of…
- CVE-2023-43826 — High (CVSS 7.5): Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in…
- CVE-2019-19603 — High (CVSS 7.5): SQLite 3.30.1 mishandles certain SELECT statements with a nonexistent VIEW, leading to an application crash.
- CVE-2018-1340 — High (CVSS 7.5): Prior to 1.0.0, Apache Guacamole used a cookie for client-side storage of the user's session token. This cookie lacked…
- CVE-2024-35164 — Medium (CVSS 6.8): The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from…
All CVEs affecting Apache Guacamole →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…