CVE-2026-23389

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

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

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-15390 (ENISA EUVD) · GHSA-4r22-fj9f-vv8r (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

ice: Fix memory leak in ice_set_ringparam()

In ice_set_ringparam, tx_rings and xdp_rings are allocated before rx_rings. If the allocation of rx_rings fails, the code jumps to the done label leaking both tx_rings and xdp_rings. Furthermore, if the setup of an individual Rx ring fails during the loop, the code jumps to the free_tx label which releases tx_rings but leaks xdp_rings.

Fix this by introducing a free_xdp label and updating the error paths to ensure both xdp_rings and tx_rings are properly freed if rx_rings allocation or setup fails.

Compile tested only. Issue found using a prototype static analysis tool and code review.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 25, 2026

Last Modified

November 5, 2026

Advisory Details (6)

Auto-updated Aug 6, 2026
Patch available.
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fe868b499d16f55bbeea89992edb98043c9de416
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e0c211a0c26159058303712d6b4fbd1c88835e6d
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bddf04e3822e4fa38691433dd0750420d49a0dd6
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b23282218eca27b710111460b4964c8a456c6c44
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/63dc317dfcd3faffd082c2bf3080f9ad070273da
Web page

ice: Fix memory leak in ice_set_ringparam() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/44ba32a892b72de3faa04b8cfb1f2f1418fdd580

Vendor Advisories for CVE-2026-23389(2)

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

Patch Availability(16)

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.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)
  • every version on: no fix on record
—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)
  • every version up to 6.1.176-1~deb11u1: fixed in 6.1.176-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)
  • every version up to 6.12.85-1: fixed in 6.12.85-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (124 versions)
  • every version up to 6.19.8-1: fixed in 6.19.8-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(14)

Data Freshness Timeline

(refreshed 5× in last 7d / 36× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 255 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 155 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
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  7. 2026-11-05 22:29 UTCVendor advisory
  8. 2026-11-05 22:29 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub severity MODERATE · GitHub CVSS 5.5
  9. 2026-11-05 21:38 UTCEchelonGraph re-scored
  10. 2026-11-05 21:38 UTCVendor advisory
  11. 2026-11-05 21:38 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub severity MODERATE · GitHub CVSS 5.5
  12. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
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  21. 2026-10-27 16:55 UTCOSV refresh
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  24. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  25. 2026-10-25 14:41 UTCEchelonGraph re-scored
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  1. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
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  8. 2026-10-18 03:54 UTCEchelonGraph re-scored
  9. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-15 02:47 UTCVendor advisory
  12. 2026-10-15 02:47 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub CVSS 5.5
  13. 2026-10-15 01:54 UTCEchelonGraph re-scored
  14. 2026-10-15 01:54 UTCVendor advisory
  15. 2026-10-15 01:54 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub CVSS 5.5
  16. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.1% · 1st percentile
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  19. 2026-10-12 16:21 UTCEchelonGraph re-scored
  20. 2026-10-11 20:03 UTCEchelonGraph re-scored
  21. 2026-10-11 17:16 UTCEchelonGraph re-scored
  22. 2026-10-11 14:48 UTCEchelonGraph re-scored
  23. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  24. 2026-10-11 05:55 UTCOSV refresh
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  38. 2026-09-21 18:19 UTCOSV refresh
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  67. 2026-08-16 10:23 UTCEchelonGraph re-scored
  68. 2026-08-16 10:23 UTCVendor advisory
  69. 2026-08-16 10:23 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub CVSS 5.5
  70. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
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  72. 2026-08-14 06:42 UTCEchelonGraph re-scored
  73. 2026-08-14 06:42 UTCVendor advisory
  74. 2026-08-14 06:42 UTCGHSA enrichmentGHSA-4r22-fj9f-vv8r · GitHub CVSS 5.5

Frequently asked(5)

What is CVE-2026-23389?
CVE-2026-23389 is a medium-severity vulnerability; its CVE record was published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: ice: Fix memory leak in ice_set_ringparam() In ice_set_ringparam, tx_rings and xdp_rings are allocated before rx_rings. If the allocation of rx_rings fails, the code jumps to the done label leaking both tx_rings and xdp_rings.…
When was the CVE record for CVE-2026-23389 published?
The CVE record for CVE-2026-23389 was published on March 25, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 5, 2026; the record at its source may have been updated since.
Is CVE-2026-23389 actively exploited?
CVE-2026-23389 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23389?
CVE-2026-23389 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23389?
A fix for CVE-2026-23389 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23389 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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