JLSEC-2026-788 Buffer overflow in gawk's `readdir.c` can cause denial of service and possible code execution

Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk ftype routine. This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below...

PT-2026-57815

Name of the Vulnerable Software and Affected Versions gawk versions 5.4.0 and earlier Description A buffer overflow occurs in the ftype routine within the extension/readdir.c file. This flaw can lead to a program crash and potentially allow for arbitrary code execution. Recommendations Update gaw...