Yes, the vulnerability is so old, it dates from a time when networks charged on a ‘per-packet basis’.
A long, long time ago, in a land free of binary exploit mitigations, when Unix still roamed the Earth, there lived a pre-authentication Telnetd vulnerability. In fact, this vulnerability was born so long ago (way back in 1994) that it may even be older than you. To put the timespan
Fairly confident that @riskybusiness will find this one interesting 🙂
@whitequark incorrect-ish
Per-packet charges largely disappeared by 1994 although some Internetworks still used them. But they were already very antiquated.
But the bigger gripe:
“That was so long ago that RISC was still a distant dream.”
incorrect. Late 80’s is when RISC CPUs started becoming a thing.
@whitequark well telnet is obsolete since ssh was introduced in 1995 so 🤔
Also coming up with some hypotethical age old system that only runs telnet...
Well if you have to run such a thing in 2026 you better have it fully isolated to begin with otherwise you just ask for the maximum pain and suffering.
René Mayrhofer 
🇺🇦
✧✦Catherine✦✧
Simon Zerafa (Status: 
😊)
xyhhx 
Elizabeth 
VoidZeroOne 
