← Vulnerability feed

Vulnerability record · CVE-2026-57918 · published 26 June 2026

CVE-2026-57918: libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/…

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.

7.1 CVSS 3.1 High EPSS 0.30% · top 79.6% CWE-191 · CWE-191 Awaiting Analysis
7.1CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
26 Jun 2026Last modified by NVD

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.

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

References

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

Track CVE-2026-57918 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2014-0497Adobe Flash Player integer underflow allows remote code executionAdobe Flash Player contains an integer underflow (CWE-191) that allows remote attackers to execute arbitrary code via unspecified vectors. The flaw a…KEVEPSS 100%analysed8.4CVE-2022-0185Linux Kernel Filesystem Context Heap Buffer OverflowThe legacy_parse_param function in the Linux kernel's Filesystem Context functionality fails to properly verify supplied parameter lengths, causing a…KEVEPSS 25%analysed7.8CVE-2021-31956Windows NTFS integer underflow privilege escalationCVE-2021-31956 is an elevation of privilege flaw in the Windows NTFS file system driver, rooted in an integer underflow (CWE-191). A local attacker w…KEVEPSS 22%analysed

Source: NIST National Vulnerability Database (record CVE-2026-57918), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.