{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-4638 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4638 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4638 is a high-severity vulnerability in Paessler GmbH PRTG Network Monitor, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4638 and fix it if it is affected.\n\nWhat it is: CVE-2026-4638 is a high-severity vulnerability in Paessler GmbH PRTG Network Monitor, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-4638 in the wild and no public exploit code.\n\nAffected product: Paessler GmbH PRTG Network Monitor. 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-2026-4638/ (Markdown: https://insights.sbomify.com/CVE-2026-4638/index.md)","id":"CVE-2026-4638","markdown":"https://insights.sbomify.com/CVE-2026-4638/index.md","name":"CVE-2026-4638","record":{"aliases":["GHSA-gh9q-9rjg-9rq2"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Network monitoring software","requires_auth":"low_privilege","summary":"Authenticated users can expose plaintext Windows passwords by triggering a VBScript error in a demo sensor, requiring an upgrade to PRTG Network Monitor.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"SEC-VLab","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-209","name":"Generation of Error Message Containing Sensitive Information"}],"description":"PRTG Network Monitor before version 26.2.120.1449 ships a demo EXE/Script sensor that multiplies two integer parameters using cscript.exe. If a non-numeric value is passed instead, cscript.exe raises a 'Type mismatch' runtime error that includes the offending parameter value in plaintext. PRTG provides a documented placeholder variable, %windowspassword, which resolves to the configured Windows/domain password used by PRTG and can be passed as a sensor parameter. \n\nAny PRTG user who is not restricted to read-only access and is permitted to create sensors (the default for non-read-only users) can pass %windowspassword as an argument to the demo VBScript sensor, triggering the type-mismatch error and causing PRTG to display the plaintext password in the sensor's error output.","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":"Plaintext Password Disclosure via VBScript Sensor Error Message in Paessler PRTG Network Monitor","id":"CVE-2026-4638","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Galaxy Software Services｜Vitals ESP - Incorrect Authorization","id":"CVE-2026-4639"},"packages":[],"prev":{"headline":"Reflected Cross-Site Scripting via URL Path in Paessler PRTG Network Monitor","id":"CVE-2026-4637"},"products":["PRTG Network Monitor"],"published":"2026-09-24","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":"2026-09-24","vendors":["Paessler GmbH"]},"summary":"Authenticated users can expose plaintext Windows passwords by triggering a VBScript error in a demo sensor, requiring an upgrade to PRTG Network Monitor.","url":"https://insights.sbomify.com/CVE-2026-4638/"}