CVE-2026-23245

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-03-18. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-12808 (ENISA EUVD) · GHSA-vw2r-ffc4-8xm3 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

net/sched: act_gate: snapshot parameters with RCU on replace

The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list.

Convert the parameters to an RCU-protected snapshot and swap updates under tcf_lock, freeing the previous snapshot via call_rcu(). When REPLACE omits the entry list, preserve the existing schedule so the effective state is unchanged.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 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 BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
3rd
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 (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-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 (model v2026.06.15, score date 2026-11-04). 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 low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 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 low or medium mission impact; Track* at high (mission-essential systems).

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

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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)14 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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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 18, 2026

Last Modified

October 15, 2026

Advisory Details (7)

Auto-updated Jun 10, 2026
Patch available.
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fc98fd8d214693be91253d9a88cdf8e5e143d124
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfc314d7c767e350f78a46a8f8b134f80e8ad432
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8b1251bbf0f10ac745ed74bad4d3b433caa1eeae
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/62413a9c3cb183afb9bb6e94dd68caf4e4145f4c
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/58b162e318d0243ad2d7d92456c0873f2494c351
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/04d75529dc0f9be78786162ebab7424af4644df2
Web page

net/sched: act_gate: snapshot parameters with RCU on replace - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/035d0d09d5ab3ed3e93d18cde2b562a6719eea23

Vendor Advisories for CVE-2026-23245(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 ... 5.10.92-2 (53 versions)
  • every version up to 5.10.257-1: fixed in 5.10.257-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)
  • every version up to 6.1.170-1~deb11u1: fixed in 6.1.170-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)
  • every version up to 6.1.170-1: fixed in 6.1.170-1
—
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 (121 versions)
  • every version up to 6.19.8-1: fixed in 6.19.8-1
—

Additional Vendor Advisories

(14)

Data Freshness Timeline

(refreshed 10× in last 7d / 49× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 99 of 289 refreshes on record for this CVE.

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 190 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-11-05 04:31 UTCEG score recompute
  4. 2026-11-05 04:31 UTCVendor advisory
  5. 2026-11-05 04:31 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  11. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  12. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  13. 2026-10-29 05:42 UTCEG score recompute
  14. 2026-10-29 05:42 UTCVendor advisory
  15. 2026-10-29 05:42 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  16. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  18. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  19. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  20. 2026-10-25 14:41 UTCEG score recompute
  21. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-10-22 01:19 UTCEG score recompute
  25. 2026-10-22 01:19 UTCVendor advisory
Show 74 more
  1. 2026-10-22 01:19 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  2. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  3. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  4. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  5. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  6. 2026-10-18 03:54 UTCEG score recompute
  7. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  8. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  9. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  10. 2026-10-15 02:38 UTCEG score recompute
  11. 2026-10-15 02:37 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  12. 2026-10-15 01:41 UTCEG score recompute
  13. 2026-10-15 01:40 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  14. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  15. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  16. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  17. 2026-10-12 16:21 UTCEG score recompute
  18. 2026-10-11 20:03 UTCEG score recompute
  19. 2026-10-11 17:16 UTCEG score recompute
  20. 2026-10-11 14:48 UTCEG score recompute
  21. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  22. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  23. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  24. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  25. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  26. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  27. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  28. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  29. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  30. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  31. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  32. 2026-09-28 01:19 UTCOSV refresh
  33. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  34. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  35. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  37. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  38. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  39. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  40. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  41. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  42. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  43. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  44. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  45. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  46. 2026-09-08 09:18 UTCEG score recompute
  47. 2026-09-08 09:18 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  48. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  49. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  51. 2026-09-02 18:08 UTCOSV refresh
  52. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  53. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  54. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  55. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  56. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  57. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  58. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  59. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  60. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  61. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  62. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  63. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  64. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  65. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  66. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  67. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  68. 2026-08-16 11:17 UTCEG score recompute
  69. 2026-08-16 11:17 UTCVendor advisory
  70. 2026-08-16 11:17 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8
  71. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  72. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  73. 2026-08-14 19:56 UTCVendor advisory
  74. 2026-08-14 19:56 UTCGHSA enrichmentGHSA-vw2r-ffc4-8xm3 · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-23245?
CVE-2026-23245 is a high-severity vulnerability; its CVE record was published on March 18, 2026. In the Linux kernel, the following vulnerability has been resolved: net/sched: act_gate: snapshot parameters with RCU on replace The gate action can be replaced while the hrtimer callback or dump path is walking the schedule list. Convert the parameters to an RCU-protected snapshot and swap updates…
When was the CVE record for CVE-2026-23245 published?
The CVE record for CVE-2026-23245 was published on March 18, 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 October 15, 2026; the record at its source may have been updated since.
Is CVE-2026-23245 actively exploited?
CVE-2026-23245 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23245?
CVE-2026-23245 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-23245?
A fix for CVE-2026-23245 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23245 are linked in the Vendor Advisories panel on this page.

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