CVE catalog
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/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds t
- Severity
- High · CVSS 7.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libnfs | sid | 5.0.2-1.1 | not affected |
| Debian | libnfs | forky | 5.0.2-1.1 | not affected |
| Debian | libnfs | trixie | 5.0.2-1+deb13u1 | not affected |
| Debian | libnfs | bookworm | 4.0.0-1 | not affected |
| Debian | libnfs | bookworm-security | 4.0.0-1+deb12u1 | not affected |
| Cpe | libnfs | Not reported | Not reported | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libnfs | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | libnfs | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | libnfs | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | libnfs | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libnfs13]Not affected
Source package: [libnfs]
Details (4)
4.0.0-1· amd64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1· arm64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· amd64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· arm64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
- [libnfs-dev]Not affected
Source package: [libnfs]
Details (4)
4.0.0-1· amd64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1· arm64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· amd64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· arm64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
- [libnfs-utils]Not affected
Source package: [libnfs]
Details (4)
4.0.0-1· amd64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1· arm64 · bookwormNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· amd64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
4.0.0-1+deb12u1· arm64 · bookworm-securityNot affected
nvd · libnfs · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11246-1.json]
- [https://github.com/sahlberg/libnfs/commit/935b8db712b3c6649bc57ddc276526c4a31680de]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-57918]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-57918]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-57918]
- [https://security-tracker.debian.org/tracker/CVE-2026-57918]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57918.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]