CVE-2026-23377

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-03-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

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

In the Linux kernel, the following vulnerability has been resolved:

ice: change XDP RxQ frag_size from DMA write length to xdp.frame_sz

The only user of frag_size field in XDP RxQ info is bpf_xdp_frags_increase_tail(). It clearly expects whole buff size instead of DMA write size. Different assumptions in ice driver configuration lead to negative tailroom.

This allows to trigger kernel panic, when using XDP_ADJUST_TAIL_GROW_MULTI_BUFF xskxceiver test and changing packet size to 6912 and the requested offset to a huge value, e.g. XSK_UMEM__MAX_FRAME_SIZE * 100.

Due to other quirks of the ZC configuration in ice, panic is not observed in ZC mode, but tailroom growing still fails when it should not.

Use fill queue buffer truesize instead of DMA write size in XDP RxQ info. Fix ZC mode too by using the new helper.

CVSS v3
5.5
EG Score
5.5(medium)
EPSS
1.0%
KEV
Not listed

Published

March 25, 2026

Last Modified

April 28, 2026

References (2)

Vendor Advisories for CVE-2026-23377(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.19.7—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 11× in last 7d / 46× 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.

Showing the most recent 100 of 111 total refreshes for this CVE.

  1. 2026-07-15 16:57 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
  3. 2026-07-15 02:00 UTCEPSS rescore
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  24. 2026-06-30 23:22 UTCEPSS rescore
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  1. 2026-06-29 14:06 UTCEPSS rescore
  2. 2026-06-29 05:02 UTCOSV refresh
  3. 2026-06-28 14:07 UTCEPSS rescore
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  5. 2026-06-28 04:56 UTCEPSS rescore
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  23. 2026-06-14 23:18 UTCEPSS rescore
  24. 2026-06-13 23:00 UTCEPSS rescore
  25. 2026-06-12 23:12 UTCEPSS rescore
  26. 2026-06-11 23:31 UTCEG score recompute
  27. 2026-06-11 23:31 UTCGHSA enrichment
  28. 2026-06-11 14:00 UTCEPSS rescore
  29. 2026-06-10 22:18 UTCEPSS rescore
  30. 2026-06-10 19:07 UTCEG score recompute
  31. 2026-06-10 19:07 UTCGHSA enrichment
  32. 2026-06-10 13:22 UTCEPSS rescore
  33. 2026-06-09 16:54 UTCEG score recompute
  34. 2026-06-09 16:54 UTCGHSA enrichment
  35. 2026-06-08 14:42 UTCEG score recompute
  36. 2026-06-08 14:42 UTCGHSA enrichment
  37. 2026-06-08 14:17 UTCEPSS rescore
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  39. 2026-06-07 15:25 UTCEPSS rescore
  40. 2026-06-07 15:24 UTCEPSS rescore
  41. 2026-06-07 12:28 UTCEG score recompute
  42. 2026-06-07 12:28 UTCGHSA enrichment
  43. 2026-06-06 13:47 UTCEPSS rescore
  44. 2026-06-06 13:47 UTCEPSS rescore
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  46. 2026-06-05 22:47 UTCEPSS rescore
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  49. 2026-06-04 13:12 UTCEPSS rescore
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  57. 2026-06-01 07:13 UTCOSV refresh
  58. 2026-05-31 22:30 UTCEPSS rescore
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  73. 2026-05-26 07:18 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-23377?
CVE-2026-23377 is a medium vulnerability published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: ice: change XDP RxQ fragsize from DMA write length to xdp.framesz The only user of frag_size field in XDP RxQ info is bpfxdpfragsincreasetail(). It clearly expects whole buff size instead of DMA write size. Different assumptions in…
When was CVE-2026-23377 disclosed?
CVE-2026-23377 was first published in the National Vulnerability Database on March 25, 2026, with the most recent update on April 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23377 actively exploited?
CVE-2026-23377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-23377?
CVE-2026-23377 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23377?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23377, 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.

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