CVE-2026-23453

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-03. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week

Also known asEUVD-2026-18706 (ENISA EUVD) · GHSA-h255-j2q2-5hrg (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
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: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode

Page recycling was removed from the XDP_DROP path in emac_run_xdp() to avoid conflicts with AF_XDP zero-copy mode, which uses xsk_buff_free() instead.

However, this causes a memory leak when running XDP programs that drop packets in non-zero-copy mode (standard page pool mode). The pages are never returned to the page pool, leading to OOM conditions.

Fix this by handling cleanup in the caller, emac_rx_packet(). When emac_run_xdp() returns ICSSG_XDP_CONSUMED for XDP_DROP, the caller now recycles the page back to the page pool. The zero-copy path, emac_rx_packet_zc() already handles cleanup correctly with xsk_buff_free().

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 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
0.3%
EPSS %ILE
27th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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: 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.

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

April 3, 2026

Last Modified

August 5, 2026

Advisory Details (2)

Auto-updated Jul 24, 2026
Patch available.
Web page

net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5
Web page

net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/719d3e71691db7c4f1658ba5a6d1472928121594

Vendor Advisories for CVE-2026-23453(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 / EcosystemFix (by version range) / PatchReleasedSource
linuxKernel @ 6.19.10 (fixes >=6.19.0)—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.

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (123 versions)
  • every version up to 6.19.10-1: fixed in 6.19.10-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 38× 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 255 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 156 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  2. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  3. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  5. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  6. 2026-10-25 14:41 UTCEG score recompute
  7. 2026-10-25 05:17 UTCEG score recompute
  8. 2026-10-25 05:17 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  9. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  11. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  12. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  13. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  16. 2026-10-18 03:54 UTCEG score recompute
  17. 2026-10-17 17:07 UTCEG score recompute
  18. 2026-10-17 17:07 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  20. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  21. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  22. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  23. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  24. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  25. 2026-10-12 16:21 UTCEG score recompute
Show 74 more
  1. 2026-10-11 20:03 UTCEG score recompute
  2. 2026-10-11 17:16 UTCEG score recompute
  3. 2026-10-11 14:48 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  5. 2026-10-11 02:31 UTCOSV refresh
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  7. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  8. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  9. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  11. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  12. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  13. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  14. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  15. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  17. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  18. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  20. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  21. 2026-09-21 13:49 UTCOSV refresh
  22. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  23. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  24. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  26. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  27. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  28. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  29. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  30. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  31. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  33. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  34. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  35. 2026-09-02 11:14 UTCOSV refresh
  36. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  37. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  38. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  39. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  40. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  41. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  42. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  43. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  44. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  45. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  46. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  47. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  48. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  49. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  50. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  51. 2026-08-16 09:17 UTCEG score recompute
  52. 2026-08-16 09:17 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  55. 2026-08-14 18:52 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-08-14 05:43 UTCEG score recompute
  57. 2026-08-14 05:43 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  58. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  59. 2026-08-13 09:56 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  60. 2026-08-12 19:58 UTCEG score recompute
  61. 2026-08-12 19:58 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  63. 2026-08-11 20:26 UTCEG score recompute
  64. 2026-08-11 20:25 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  66. 2026-08-11 03:26 UTCEG score recompute
  67. 2026-08-11 03:26 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  69. 2026-08-10 04:55 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  70. 2026-08-09 17:04 UTCEG score recompute
  71. 2026-08-09 17:04 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  73. 2026-08-09 05:14 UTCEG score recompute
  74. 2026-08-09 05:14 UTCGHSA enrichmentGHSA-h255-j2q2-5hrg · GitHub severity HIGH · GitHub CVSS 7.5

Frequently asked(5)

What is CVE-2026-23453?
CVE-2026-23453 is a high-severity vulnerability; its CVE record was published on April 3, 2026. In the Linux kernel, the following vulnerability has been resolved: net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode Page recycling was removed from the XDPDROP path in emacrun_xdp() to avoid conflicts with AFXDP zero-copy mode, which uses xskbuff_free() instead. However,…
When was the CVE record for CVE-2026-23453 published?
The CVE record for CVE-2026-23453 was published on April 3, 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 August 5, 2026; the record at its source may have been updated since.
Is CVE-2026-23453 actively exploited?
CVE-2026-23453 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-23453?
CVE-2026-23453 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-23453?
A fix for CVE-2026-23453 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-23453 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-23453

Explore →

Is Your Infrastructure Affected by CVE-2026-23453?

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