CVE-2026-57918

HIGH

Sahlberg Libnfs - Integer Underflow (Wrap or Wraparound)

Title source: rule

Description

libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds the absolute pdu size from the xid/record-marker.

References (1)

Core 1

Core References

https://github.com/sahlberg/libnfs/commit/935b8db712b3c6649bc57ddc276526c4a31680de

View Patch ZIP pw:eip

Scores

CVSS v3 7.1

EPSS 0.0019

EPSS Percentile 9.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-191

Status published

Products (1)

sahlberg/libnfs < 935b8db712b3c6649bc57ddc276526c4a31680de

Published Jun 26, 2026

Tracked Since Jun 26, 2026