{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-107611 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-107611 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-107611 is a high-severity vulnerability in GlavSoft TightVNC, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-107611 and fix it if it is affected.\n\nWhat it is: CVE-2026-107611 is a high-severity vulnerability in GlavSoft TightVNC, published on 8 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-107611 in the wild and no public exploit code.\n\nAffected product: GlavSoft TightVNC. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-107611/ (Markdown: https://insights.sbomify.com/CVE-2026-107611/index.md)","id":"CVE-2026-107611","markdown":"https://insights.sbomify.com/CVE-2026-107611/index.md","name":"CVE-2026-107611","record":{"aliases":["GHSA-r575-8hw6-vfq3"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"TightVNC Viewer","requires_auth":"none","summary":"A malicious VNC server can trigger an out-of-bounds read in TightVNC Viewer, leaking heap memory or crashing the application.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"securin","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"An out-of-bounds read vulnerability in the ZRLE decoder of GlavSoft TightVNC Viewer for Windows before 2.8.88 allows a malicious or compromised VNC server to read heap memory beyond the palette allocation and crash the viewer by sending ZRLE-encoded tiles whose palette indices exceed the declared palette size. readPaletteRleTile() and readPackedPaletteTile() use the attacker-supplied index to look up colours without validating it against the palette size; out-of-bounds heap data is copied into the framebuffer (garbled display) or the read faults, terminating the viewer.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Out-of-bounds read in TightVNC Viewer ZRLE palette decoding","id":"CVE-2026-107611","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"World-accessible IPC shared memory with predictable name in TightVNC Server","id":"CVE-2026-107612"},"packages":[],"prev":{"headline":"Improper link resolution in asset bundling output handling in aws-cdk-lib","id":"CVE-2026-107608"},"products":["TightVNC"],"published":"2026-10-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["GlavSoft"]},"summary":"A malicious VNC server can trigger an out-of-bounds read in TightVNC Viewer, leaking heap memory or crashing the application.","url":"https://insights.sbomify.com/CVE-2026-107611/"}