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

Also known asEUVD-2023-59518 (ENISA EUVD) · GHSA-p886-4435-7m79 (GitHub Security Advisories)Source: ENISA EUVD

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
48th
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 2026-11-12). 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

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 21× in last 7d / 87× 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 315 rows 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. None are among the latest 100 rows. The 215 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 08:16 UTCEchelonGraph re-scored
  2. 2026-11-13 08:16 UTCVendor advisory
  3. 2026-11-13 08:16 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  4. 2026-11-12 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-11-12 06:20 UTCEchelonGraph re-scored
  6. 2026-11-12 06:20 UTCVendor advisory
  7. 2026-11-12 06:20 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-11-11 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  9. 2026-11-11 04:24 UTCEchelonGraph re-scored
  10. 2026-11-11 04:24 UTCVendor advisory
  11. 2026-11-11 04:24 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-10 16:37 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-11-10 02:20 UTCEchelonGraph re-scored
  14. 2026-11-10 02:20 UTCVendor advisory
  15. 2026-11-10 02:20 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-11-09 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  17. 2026-11-09 00:25 UTCEchelonGraph re-scored
  18. 2026-11-09 00:25 UTCVendor advisory
  19. 2026-11-09 00:25 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-11-08 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  21. 2026-11-07 22:30 UTCEchelonGraph re-scored
  22. 2026-11-07 22:30 UTCVendor advisory
  23. 2026-11-07 22:30 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-11-07 16:35 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  25. 2026-11-06 20:34 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-11-06 20:34 UTCVendor advisory
  2. 2026-11-06 20:34 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-06 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-11-05 18:38 UTCEchelonGraph re-scored
  5. 2026-11-05 18:38 UTCVendor advisory
  6. 2026-11-05 18:38 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  7. 2026-11-05 16:33 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-11-04 19:25 UTCOSV refresh
  9. 2026-11-04 16:43 UTCEchelonGraph re-scored
  10. 2026-11-04 16:43 UTCVendor advisory
  11. 2026-11-04 16:43 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-04 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  13. 2026-11-03 16:41 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  14. 2026-11-03 14:47 UTCEchelonGraph re-scored
  15. 2026-11-03 14:47 UTCVendor advisory
  16. 2026-11-03 14:47 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  17. 2026-11-02 16:40 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  18. 2026-11-02 12:38 UTCEchelonGraph re-scored
  19. 2026-11-02 12:38 UTCVendor advisory
  20. 2026-11-02 12:38 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  21. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  22. 2026-11-01 10:42 UTCEchelonGraph re-scored
  23. 2026-11-01 10:42 UTCVendor advisory
  24. 2026-11-01 10:42 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  26. 2026-10-31 08:47 UTCEchelonGraph re-scored
  27. 2026-10-31 08:47 UTCVendor advisory
  28. 2026-10-31 08:47 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  29. 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  30. 2026-10-30 06:51 UTCEchelonGraph re-scored
  31. 2026-10-30 06:51 UTCVendor advisory
  32. 2026-10-30 06:51 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  33. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  34. 2026-10-29 04:56 UTCEchelonGraph re-scored
  35. 2026-10-29 04:56 UTCVendor advisory
  36. 2026-10-29 04:56 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  37. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  38. 2026-10-28 03:01 UTCEchelonGraph re-scored
  39. 2026-10-28 03:01 UTCVendor advisory
  40. 2026-10-28 03:00 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  41. 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  42. 2026-10-27 00:57 UTCEchelonGraph re-scored
  43. 2026-10-27 00:57 UTCVendor advisory
  44. 2026-10-27 00:56 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  45. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  46. 2026-10-25 19:16 UTCVendor advisory
  47. 2026-10-25 19:16 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  48. 2026-10-25 17:28 UTCEchelonGraph re-scored
  49. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  50. 2026-10-24 17:14 UTCEchelonGraph re-scored
  51. 2026-10-24 17:14 UTCVendor advisory
  52. 2026-10-24 17:14 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-24 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  54. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  55. 2026-10-23 15:18 UTCEchelonGraph re-scored
  56. 2026-10-23 15:18 UTCVendor advisory
  57. 2026-10-23 15:18 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  58. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  59. 2026-10-22 13:23 UTCEchelonGraph re-scored
  60. 2026-10-22 13:23 UTCVendor advisory
  61. 2026-10-22 13:23 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  62. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  63. 2026-10-21 11:26 UTCEchelonGraph re-scored
  64. 2026-10-21 11:26 UTCVendor advisory
  65. 2026-10-21 11:26 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  66. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  67. 2026-10-20 09:31 UTCEchelonGraph re-scored
  68. 2026-10-20 09:31 UTCVendor advisory
  69. 2026-10-20 09:31 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  70. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  71. 2026-10-19 07:35 UTCEchelonGraph re-scored
  72. 2026-10-19 07:35 UTCVendor advisory
  73. 2026-10-19 07:35 UTCGHSA enrichmentGHSA-p886-4435-7m79 · GitHub severity CRITICAL · GitHub CVSS 9.1
  74. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  75. 2026-10-18 05:38 UTCEchelonGraph re-scored

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 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…
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 (48th 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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