Read the docs
TI-2023-14404 Aliases CVE-2023-30576GHSA-q7pp-7w87-cjxp

Apache Guacamole: Use-after-free in handling of RDP audio input buffer

Priority LOW 39CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01113 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Guacamole0.9.10 – 1.5.1—No fix listedCNA
  • Apache Guacamole VendorApache Affected 0.9.10 – 1.5.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*0.9.0 to before 1.5.2VulnerableApache
  • cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:* Versions 0.9.0 to before 1.5.2 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30576
  2. 2026-10-03 Alias added: GHSA-q7pp-7w87-cjxp

References

Advisory 1

  • TI-2019-14123 SQLite 3.30.1 mishandles certain SELECT statements with a nonexistent VIEW, leading to an application crash. CVSS 3.1HIGH 7.5
  • TI-2023-23512 Apache Guacamole: Integer overflow in handling of VNC image buffers CVSS 3.1HIGH 8.8
  • TI-2021-19751 Improper validation of SAML responses CVSS 3.1HIGH 8.8
  • TI-2017-02374 Race condition in Apache Guacamole CVSS 3.0HIGH 8.1
  • TI-2018-01241 Prior to 1.0.0, Apache Guacamole used a cookie for client-side storage of the user's… CVSS 3.0HIGH 7.5
  • TI-2024-23239 Apache Guacamole: Improper input validation of console codes CVSS 3.1HIGH 7.5
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences