{"id":"CVE-2026-20757","title":"Improper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server.\n\n\n\nThis issue affects Command Centre Server: \n\n9.40 prior to vEL9.40…","summary":"Improper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server.\n\n\n\nThis issue affects Command Centre Server: \n\n9.40 prior to vEL9.40…","severity":"low","cvss":2.5,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L","cwe":["CWE-667"],"vendor":"gallagher","product":"command_centre","affected":["command_centre < 9.10.4647","command_centre >= 9.20.1043, < 9.20.3783","command_centre >= 9.30.1594, < 9.30.3382","command_centre >= 9.40.1359, < 9.40.1976"],"patched":["command_centre 9.40.1976"],"published":"2026-03-03","updated":"2026-08-18","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-20757","references":[{"url":"https://security.gallagher.com/en-NZ/Security-Advisories/CVE-2026-20757","label":"disclosures@gallagher.com"}],"tags":["nvd"],"epss":0.00069,"epssPercentile":0.0004,"ingestedAt":"2026-08-18T16:19:51.788Z","slug":"CVE-2026-20757","body":"## Overview\n\nImproper Locking vulnerability (CWE-667) in Gallagher Morpho integration allows a privileged operator to cause a limited denial-of-service in the Command Centre Server.\n\n\n\nThis issue affects Command Centre Server: \n\n9.40 prior to vEL9.40.1976(MR1), 9.30 prior to vEL9.30.3382 (MR4), 9.20 prior to vEL9.20.3783 (MR6), 9.10 prior to vEL9.10.4647 (MR9), all versions of 9.00 and prior.\n\n## Affected\n\n- `command_centre < 9.10.4647`\n- `command_centre >= 9.20.1043, < 9.20.3783`\n- `command_centre >= 9.30.1594, < 9.30.3382`\n- `command_centre >= 9.40.1359, < 9.40.1976`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `command_centre 9.40.1976`","depth":"sunlit","depthScore":14,"depthScoreParts":{"impact":13.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}