A 79th-minute penalty from Tristan Plummer salvaged a 2-2 draw for Hereford after Port Vale had dominated the League Two match at Edgar Street.
Plummer, on loan from Bristol City, rifled home his second penalty in four days, having scored from the spot against Portsmouth in the Carling Cup on Tuesday.
Vale did everything but score in the first half when they forced six corners, with Louis Dodds heading the first against the Hereford crossbar after three minutes.
Goalkeeper Adam Bartlett also made a good save to stop a Tommy Fraser free-kick.
Port Vale continued to dominate play, with central defender John McCombe also heading against the crossbar from another corner by Fraser.
Hereford, however, struck in a counter attack when winger Mark Pugh swept past two defenders before curling a close-range shot past Chris Martin into the top corner of the net.
But the visitors levelled four minutes into the second half when Dodds rifled a low shot past goalkeeper Bartlett from 15 yards.
Vale struck again four minutes later when Robert Taylor drilled a 25-yard shot on to the crossbar before the ball dropped down over the line.
But Hereford levelled 11 minutes from time when Plummer drilled home his spot-kick past goalkeeper Martin after Richard Rose had been brought down by a Vale defender.