{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82876 exists.","fix":"No fix has been published for CVE-2026-82876 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82876 is a critical vulnerability in Phison Electronics Corporation PS3111-S11 Controller Firmware, published on 31 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-82876 and fix it if it is affected.\n\nWhat it is: CVE-2026-82876 is a critical vulnerability in Phison Electronics Corporation PS3111-S11 Controller Firmware, published on 31 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82876 exists.\n\nAffected product: Phison Electronics Corporation PS3111-S11 Controller Firmware. 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-2026-82876/ (Markdown: https://insights.sbomify.com/CVE-2026-82876/index.md)","id":"CVE-2026-82876","markdown":"https://insights.sbomify.com/CVE-2026-82876/index.md","name":"CVE-2026-82876","record":{"aliases":["GHSA-r5jx-v7f9-8wxc"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"SSD controller firmware","requires_auth":"high_privilege","summary":"Attackers can bypass firmware signature verification to install malicious code on Phison SSD controllers by embedding a rogue public key.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"Phison PS3111-S11 controller firmware verifies RSA signatures using a public modulus embedded within the firmware image itself rather than anchored in immutable storage. Attackers can generate arbitrary RSA key pairs, sign modified firmware with the private key, embed the matching modulus in the signature segment, and the controller accepts the tampered firmware as valid.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-04","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-04T11:54:05Z","kind":"github_poc","ref":"https://github.com/Hunt-Benito/the-key-ships-with-the-lock-cve-2026-82876-phison-s11-ssd-firmware-signature-bypass","stars":0,"title":null}],"tier":"weaponised"},"has_fix":null,"headline":"Phison PS3111-S11 Controller Firmware Signature Verification Bypass","id":"CVE-2026-82876","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"ILIAS Arbitrary File Read via SOAP addFile","id":"CVE-2026-82877"},"packages":[],"prev":{"headline":"ToolJet before v3.16.208 Authorization Bypass via organizationId","id":"CVE-2026-82875"},"products":["PS3111-S11 Controller Firmware"],"published":"2026-08-31","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-02","vendors":["Phison Electronics Corporation"]},"summary":"Attackers can bypass firmware signature verification to install malicious code on Phison SSD controllers by embedding a rogue public key.","url":"https://insights.sbomify.com/CVE-2026-82876/"}