CVE-2026-57918

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.1
EG Score
7.1(high)
EPSS
9.4%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 935b8db712b3 (sahlberg/libnfs)

Fix landed in sahlberg/libnfs commit 935b8db712b3 — awaiting tagged release

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

Vendor Advisories for CVE-2026-57918(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 40× in last 7d / 59× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 01:20 UTCEG score recompute
  2. 2026-07-07 01:20 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 13:49 UTCEG score recompute
  6. 2026-07-06 13:49 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-06 02:14 UTCEG score recompute
  10. 2026-07-06 02:14 UTCGHSA enrichment
  11. 2026-07-05 14:43 UTCEG score recompute
  12. 2026-07-05 14:43 UTCGHSA enrichment
  13. 2026-07-05 03:05 UTCEG score recompute
  14. 2026-07-05 03:05 UTCGHSA enrichment
  15. 2026-07-05 02:31 UTCEPSS rescore
  16. 2026-07-05 02:30 UTCEPSS rescore
  17. 2026-07-04 15:32 UTCEG score recompute
  18. 2026-07-04 15:32 UTCGHSA enrichment
  19. 2026-07-04 06:31 UTCEPSS rescore
  20. 2026-07-04 06:31 UTCEPSS rescore
  21. 2026-07-04 04:02 UTCEG score recompute
  22. 2026-07-04 04:02 UTCGHSA enrichment
  23. 2026-07-03 16:25 UTCEG score recompute
  24. 2026-07-03 16:25 UTCGHSA enrichment
  25. 2026-07-03 04:54 UTCEG score recompute
Show 34 more
  1. 2026-07-03 04:54 UTCGHSA enrichment
  2. 2026-07-02 17:23 UTCEG score recompute
  3. 2026-07-02 17:23 UTCGHSA enrichment
  4. 2026-07-02 05:53 UTCEG score recompute
  5. 2026-07-02 05:52 UTCGHSA enrichment
  6. 2026-07-01 18:22 UTCEG score recompute
  7. 2026-07-01 18:21 UTCGHSA enrichment
  8. 2026-07-01 15:07 UTCEPSS rescore
  9. 2026-07-01 06:51 UTCEG score recompute
  10. 2026-07-01 06:50 UTCGHSA enrichment
  11. 2026-06-30 23:22 UTCEPSS rescore
  12. 2026-06-30 19:18 UTCEG score recompute
  13. 2026-06-30 19:18 UTCGHSA enrichment
  14. 2026-06-30 07:48 UTCEG score recompute
  15. 2026-06-30 07:47 UTCGHSA enrichment
  16. 2026-06-29 20:17 UTCEG score recompute
  17. 2026-06-29 20:17 UTCGHSA enrichment
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 08:46 UTCEG score recompute
  20. 2026-06-29 08:46 UTCGHSA enrichment
  21. 2026-06-28 21:15 UTCEG score recompute
  22. 2026-06-28 21:15 UTCGHSA enrichment
  23. 2026-06-28 14:07 UTCEPSS rescore
  24. 2026-06-28 09:44 UTCEG score recompute
  25. 2026-06-28 09:44 UTCGHSA enrichment
  26. 2026-06-28 04:56 UTCEPSS rescore
  27. 2026-06-27 22:14 UTCEG score recompute
  28. 2026-06-27 22:13 UTCGHSA enrichment
  29. 2026-06-27 10:41 UTCEG score recompute
  30. 2026-06-27 10:41 UTCGHSA enrichment
  31. 2026-06-26 23:10 UTCEG score recompute
  32. 2026-06-26 23:10 UTCGHSA enrichment
  33. 2026-06-26 11:39 UTCEG score recompute
  34. 2026-06-26 11:39 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57918?
CVE-2026-57918 is a high vulnerability published on June 26, 2026. libnfs through 6.0.2 before 935b8db has an xid integer underflow in READIOVEC in rpcreadfromsocket 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.
When was CVE-2026-57918 disclosed?
CVE-2026-57918 was first published in the National Vulnerability Database on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57918 actively exploited?
CVE-2026-57918 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57918?
CVE-2026-57918 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-57918?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57918, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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