published April 2, 2020
NVD has not assigned a CVSS score to this record. It sits in the 99.2th percentile for exploit probability.
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.