{"cve":"CVE-2017-3158","nvd":{"published":"2018-01-18T20:29:00.257","modified":"2026-06-17T01:17:38.367","status":"Modified","description":"A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1},"cwes":["CWE-362"],"references":["https://lists.apache.org/thread.html/b218d36bfdaf655d27382daec4dcd02ec717631f4aee8b7e4300ad65%40%3Cuser.guacamole.apache.org%3E","https://lists.apache.org/thread.html/b218d36bfdaf655d27382daec4dcd02ec717631f4aee8b7e4300ad65%40%3Cuser.guacamole.apache.org%3E"],"products":["apache:guacamole"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2017-3158","score":0.01221,"percentile":0.68707,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-3vv3-585q-wv6x","url":"https://osv.dev/vulnerability/GHSA-3vv3-585q-wv6x","summary":"Apache Guacamole Race Condition vulnerability","modified":"2023-11-08T03:59:20.406623Z","packages":[{"ecosystem":"Maven","name":"org.apache.guacamole:guacamole-common","purl":"pkg:maven/org.apache.guacamole/guacamole-common","ranges":[">=0.9.5 <0.9.11-incubating"],"fixed":["0.9.11-incubating"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}