CVE-2016-9437: An issue was discovered in the Tatsuya Kinoshita w3m fork before 0.5.3-31.

Security readout for executives and security teams

CVE-2016-9437 affects the Tatsuya Kinoshita w3m fork before 0.5.3-31. A malicious HTML page can crash w3m and may cause memory corruption. For executives, the main risk is disruption in systems or workflows that use w3m to process untrusted web content. Exposure is likely limited to hosts, scripts, terminals, or automated workflows using the affected w3m fork to render or process remote or untrusted HTML. The source bundle does not identify broader affected products or CPEs. Treat this as a targeted hygiene issue, not a broad emergency, unless w3m processes untrusted HTML in production automation. Prioritize patching where crashes could interrupt monitoring, reporting, scraping, or operational scripts. Mitigation focus: Inventory systems and scripts that use w3m.; Upgrade affected w3m installations to 0.5.3-31 or a vendor-fixed package.; Avoid processing untrusted HTML with vulnerable w3m builds until updated..

Prepared

Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.