CVE-2003-0028: Integer overflow in the xdrmem_getbytes() function, and possibly other functions, of XDR (external data rep...

Security readout for executives and security teams

CVE-2003-0028 is an old but serious memory-handling flaw in SunRPC-derived XDR libraries. A remote attacker could abuse malformed length values to potentially run code on systems that still use vulnerable libc, glibc, libnsl, or dietlibc-based XDR components. Likely exposure is concentrated in legacy Unix/Linux systems, embedded appliances, or statically linked applications using vulnerable SunRPC-derived XDR code. Modern supported distributions are likely patched, but unsupported hosts and vendor appliances need verification. Treat as a legacy exposure cleanup item with high technical impact. Prioritize internet-facing or partner-facing systems first, especially unsupported Linux/Unix hosts and appliances. Mitigation focus: Apply vendor updates for glibc, libc, libnsl, dietlibc, or affected dependent packages.; Check vendor advisories for legacy distributions and appliances still in service.; Restrict network access to RPC/XDR-consuming services where business use allows..

Prepared

Jun 30, 2026, 23:52 UTC (UTC+00:00)

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