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)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
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 12× in last 7d / 86× 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. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:20 UTCEG score recompute
  4. 2026-07-22 14:08 UTCEPSS rescore
  5. 2026-07-22 14:08 UTCEPSS rescore
  6. 2026-07-21 15:25 UTCEPSS rescore
  7. 2026-07-20 17:08 UTCEPSS rescore
  8. 2026-07-19 14:31 UTCEPSS rescore
  9. 2026-07-19 14:31 UTCEPSS rescore
  10. 2026-07-19 02:29 UTCEPSS rescore
  11. 2026-07-18 10:04 UTCEPSS rescore
  12. 2026-07-17 03:52 UTCGHSA enrichment
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-16 16:19 UTCGHSA enrichment
  15. 2026-07-16 04:44 UTCGHSA enrichment
  16. 2026-07-15 17:12 UTCGHSA enrichment
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 16:57 UTCEPSS rescore
  19. 2026-07-15 05:39 UTCGHSA enrichment
  20. 2026-07-15 02:00 UTCEPSS rescore
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-14 18:04 UTCGHSA enrichment
  23. 2026-07-14 06:15 UTCGHSA enrichment
  24. 2026-07-13 22:31 UTCEPSS rescore
  25. 2026-07-13 18:41 UTCGHSA enrichment
Show 61 more
  1. 2026-07-13 07:10 UTCGHSA enrichment
  2. 2026-07-13 06:13 UTCEPSS rescore
  3. 2026-07-13 06:13 UTCEPSS rescore
  4. 2026-07-12 19:39 UTCGHSA enrichment
  5. 2026-07-12 08:08 UTCGHSA enrichment
  6. 2026-07-12 05:46 UTCEPSS rescore
  7. 2026-07-11 20:37 UTCGHSA enrichment
  8. 2026-07-11 09:06 UTCGHSA enrichment
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-10 21:36 UTCGHSA enrichment
  12. 2026-07-10 10:04 UTCGHSA enrichment
  13. 2026-07-09 22:33 UTCGHSA enrichment
  14. 2026-07-09 19:10 UTCEPSS rescore
  15. 2026-07-09 19:10 UTCEPSS rescore
  16. 2026-07-09 11:03 UTCGHSA enrichment
  17. 2026-07-08 23:30 UTCGHSA enrichment
  18. 2026-07-08 15:16 UTCEPSS rescore
  19. 2026-07-08 15:16 UTCEPSS rescore
  20. 2026-07-08 12:00 UTCGHSA enrichment
  21. 2026-07-08 00:22 UTCGHSA enrichment
  22. 2026-07-07 13:46 UTCEPSS rescore
  23. 2026-07-07 13:46 UTCEPSS rescore
  24. 2026-07-07 12:51 UTCGHSA enrichment
  25. 2026-07-07 01:20 UTCGHSA enrichment
  26. 2026-07-06 16:27 UTCEPSS rescore
  27. 2026-07-06 16:27 UTCEPSS rescore
  28. 2026-07-06 13:49 UTCGHSA enrichment
  29. 2026-07-06 02:23 UTCEPSS rescore
  30. 2026-07-06 02:23 UTCEPSS rescore
  31. 2026-07-06 02:14 UTCGHSA enrichment
  32. 2026-07-05 14:43 UTCGHSA enrichment
  33. 2026-07-05 03:05 UTCGHSA enrichment
  34. 2026-07-05 02:31 UTCEPSS rescore
  35. 2026-07-05 02:30 UTCEPSS rescore
  36. 2026-07-04 15:32 UTCGHSA enrichment
  37. 2026-07-04 06:31 UTCEPSS rescore
  38. 2026-07-04 06:31 UTCEPSS rescore
  39. 2026-07-04 04:02 UTCGHSA enrichment
  40. 2026-07-03 16:25 UTCGHSA enrichment
  41. 2026-07-03 04:54 UTCGHSA enrichment
  42. 2026-07-02 17:23 UTCGHSA enrichment
  43. 2026-07-02 05:52 UTCGHSA enrichment
  44. 2026-07-01 18:21 UTCGHSA enrichment
  45. 2026-07-01 15:07 UTCEPSS rescore
  46. 2026-07-01 06:50 UTCGHSA enrichment
  47. 2026-06-30 23:22 UTCEPSS rescore
  48. 2026-06-30 19:18 UTCGHSA enrichment
  49. 2026-06-30 07:47 UTCGHSA enrichment
  50. 2026-06-29 20:17 UTCGHSA enrichment
  51. 2026-06-29 14:06 UTCEPSS rescore
  52. 2026-06-29 08:46 UTCGHSA enrichment
  53. 2026-06-28 21:15 UTCGHSA enrichment
  54. 2026-06-28 14:07 UTCEPSS rescore
  55. 2026-06-28 09:44 UTCGHSA enrichment
  56. 2026-06-28 04:56 UTCEPSS rescore
  57. 2026-06-27 22:13 UTCGHSA enrichment
  58. 2026-06-27 10:41 UTCGHSA enrichment
  59. 2026-06-26 23:10 UTCGHSA enrichment
  60. 2026-06-26 11:39 UTCEG score recompute
  61. 2026-06-26 11:39 UTCNVD updatefirst tracked

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

Explore the affected products and dependency analysis for CVE-2026-57918

Explore →

Is Your Infrastructure Affected by CVE-2026-57918?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs