CVE-2023-52801

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2024-05-21. NVD baseline CVSS 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
9.1EG
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: 0.6%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

iommufd: Fix missing update of domains_itree after splitting iopt_area

In iopt_area_split(), if the original iopt_area has filled a domain and is linked to domains_itree, pages_nodes have to be properly reinserted. Otherwise the domains_itree becomes corrupted and we will UAF.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
41
EG Risk 41/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 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
0.6%
EPSS %ILE
47th
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). 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: 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.

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

May 21, 2024

Last Modified

August 5, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
Patch available.
Web page

iommufd: Fix missing update of domains_itree after splitting iopt_area - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e7250ab7ca4998fe026f2149805b03e09dc32498
Web page

iommufd: Fix missing update of domains_itree after splitting iopt_area - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fcb32111f01ddf3cbd04644cde1773428e31de6a
Web page

iommufd: Fix missing update of domains_itree after splitting iopt_area - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/836db2e7e4565d8218923b3552304a1637e2f28d

Vendor Advisories for CVE-2023-52801(1)

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

Patch Availability(2)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkernel-0:5.14.0-427.35.1.el9_42024-09-11redhat
linuxKernel @ 6.5.13 (fixes >=6.2.0)—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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.6.8-1: fixed in 6.6.8-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.6.8-1: fixed in 6.6.8-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 28× in last 7d / 63× 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 94 of 231 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. 6 repeat rows among the latest 100 are merged into the row they repeat. The 137 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-23 15:18 UTCEG score recompute
  3. 2026-10-23 15:18 UTCVendor advisory
  4. 2026-10-23 15:18 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  5. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-10-22 13:23 UTCEG score recompute
  7. 2026-10-22 13:23 UTCVendor advisory
  8. 2026-10-22 13:23 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-21 11:26 UTCEG score recompute
  11. 2026-10-21 11:26 UTCVendor advisory
  12. 2026-10-21 11:26 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  13. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-10-20 09:31 UTCEG score recompute
  15. 2026-10-20 09:31 UTCVendor advisory
  16. 2026-10-20 09:31 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-10-19 07:35 UTCEG score recompute
  19. 2026-10-19 07:35 UTCVendor advisory
  20. 2026-10-19 07:35 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-10-18 05:38 UTCEG score recompute
  23. 2026-10-18 05:38 UTCVendor advisory
  24. 2026-10-18 05:38 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.6% · 47th percentile
Show 69 more
  1. 2026-10-17 03:43 UTCEG score recompute
  2. 2026-10-17 03:43 UTCVendor advisory
  3. 2026-10-17 03:42 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  4. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  5. 2026-10-16 01:45 UTCEG score recompute
  6. 2026-10-16 01:45 UTCVendor advisory
  7. 2026-10-16 01:45 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-14 21:15 UTCEG score recompute
  10. 2026-10-14 21:15 UTCVendor advisory
  11. 2026-10-14 21:15 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-10-13 17:12 UTCEG score recompute
  14. 2026-10-13 17:12 UTCVendor advisory
  15. 2026-10-13 17:12 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-10-12 15:17 UTCEG score recompute
  19. 2026-10-12 15:17 UTCVendor advisory
  20. 2026-10-12 15:17 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-10-11 21:38 UTCEG score recompute
  22. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  23. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-10-08 17:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  26. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  27. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  28. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  29. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  30. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  31. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  32. 2026-09-30 16:36 UTCEG score recompute
  33. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  34. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  35. 2026-09-28 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  36. 2026-09-26 20:42 UTCOSV refresh
  37. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  38. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  39. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  40. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  41. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  42. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  43. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  44. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  45. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  46. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  47. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  48. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  49. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  50. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  51. 2026-09-07 06:47 UTCOSV refresh
  52. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  53. 2026-09-05 15:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  54. 2026-09-04 13:58 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  55. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  56. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  57. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  58. 2026-09-01 04:36 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  59. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  60. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  61. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  62. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  63. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  64. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  65. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  66. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  67. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  68. 2026-08-20 16:31 UTCOSV refresh
  69. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.6% · 45th percentile

Frequently asked(5)

What is CVE-2023-52801?
CVE-2023-52801 is a critical-severity vulnerability; its CVE record was published on May 21, 2024. In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix missing update of domainsitree after splitting ioptarea In ioptareasplit(), if the original iopt_area has filled a domain and is linked to domainsitree, pagesnodes have to be properly reinserted. Otherwise the…
When was the CVE record for CVE-2023-52801 published?
The CVE record for CVE-2023-52801 was published on May 21, 2024. 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-2023-52801 actively exploited?
CVE-2023-52801 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-52801?
CVE-2023-52801 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2023-52801?
A fix for CVE-2023-52801 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-52801 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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