CVE-2022-36648

CRITICALNVD 10.010.0
EchelonGraph scoreMEDIUM confidence

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

Score 10.0 from GitHub Security Advisory (severity: CRITICAL) published 2023-08-22. NVD baseline CVSS 10.0; sources differ by 0.0.

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

Also known asEUVD-2022-39351 (ENISA EUVD) · GHSA-4xpq-qfh7-r9h2 (GitHub Security Advisories)Source: ENISA EUVD

10.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.7%CVSS: 10.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially execute code on the host via execute a malformed program in the guest OS. Note: This has been disputed by multiple third parties as not a valid vulnerability due to the rocker device not falling within the virtualization use case.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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)
Severity100% × 45%
Impact severity (EG Severity): CVSS 10.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation1.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
1.7%
EPSS %ILE
78th
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 (10.0): severity, escalated by confirmed exploitation. This CVE's 10.0 is its impact severity (EG Severity), not escalated.

EG Severity
10.0 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
1.7% 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 low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

August 22, 2023

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Nov 8, 2026
Patch available.
Web page

[PATCH] hw/net/rocker: avoid NULL pointer dereference in of_dpa_cmd_add_

https://lists.nongnu.org/archive/html/qemu-devel/2022-06/msg04469.html

Vendor Advisories for CVE-2022-36648(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
qemu1:10.0.0+ds-1 ... 1:9.2.2+ds-1~bpo12+1 (225 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
qemu1:10.0.0+ds-1 ... 1:9.2.2+ds-1~bpo12+1 (208 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
qemu1:10.0.10+ds-0+deb13u1 ... 1:11.1.3+ds-1 (75 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
qemu1:10.0.2+ds-2 ... 1:11.1.3+ds-1 (65 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 75× 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 303 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 203 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 07:28 UTCEchelonGraph re-scored
  2. 2026-11-13 07:28 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  3. 2026-11-12 16:29 UTCEPSS rescoreEPSS 1.7% · 78th percentile
  4. 2026-11-12 05:43 UTCEchelonGraph re-scored
  5. 2026-11-12 05:43 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  6. 2026-11-11 16:32 UTCEPSS rescoreEPSS 1.7% · 78th percentile
  7. 2026-11-11 03:59 UTCEchelonGraph re-scored
  8. 2026-11-11 03:59 UTCVendor advisory
  9. 2026-11-11 03:59 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  10. 2026-11-10 16:36 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  11. 2026-11-10 02:14 UTCEchelonGraph re-scored
  12. 2026-11-10 02:14 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  13. 2026-11-09 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  14. 2026-11-09 00:30 UTCEchelonGraph re-scored
  15. 2026-11-09 00:30 UTCVendor advisory
  16. 2026-11-09 00:30 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  17. 2026-11-08 16:34 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  18. 2026-11-07 22:46 UTCEchelonGraph re-scored
  19. 2026-11-07 22:46 UTCVendor advisory
  20. 2026-11-07 22:46 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  21. 2026-11-07 16:34 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  22. 2026-11-06 21:01 UTCEchelonGraph re-scored
  23. 2026-11-06 21:01 UTCVendor advisory
  24. 2026-11-06 21:01 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  25. 2026-11-06 16:30 UTCEPSS rescoreEPSS 1.7% · 77th percentile
Show 75 more
  1. 2026-11-05 19:17 UTCEchelonGraph re-scored
  2. 2026-11-05 19:17 UTCVendor advisory
  3. 2026-11-05 19:17 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  4. 2026-11-05 16:32 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  5. 2026-11-04 17:32 UTCEchelonGraph re-scored
  6. 2026-11-04 17:32 UTCVendor advisory
  7. 2026-11-04 17:32 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  8. 2026-11-04 16:30 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  9. 2026-11-04 05:25 UTCOSV refresh
  10. 2026-11-03 16:39 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  11. 2026-11-03 15:47 UTCEchelonGraph re-scored
  12. 2026-11-03 15:47 UTCVendor advisory
  13. 2026-11-03 15:47 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  14. 2026-11-02 16:38 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  15. 2026-11-02 14:02 UTCEchelonGraph re-scored
  16. 2026-11-02 14:02 UTCVendor advisory
  17. 2026-11-02 14:02 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  18. 2026-11-01 12:18 UTCEchelonGraph re-scored
  19. 2026-11-01 12:18 UTCVendor advisory
  20. 2026-11-01 12:18 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  21. 2026-10-31 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  22. 2026-10-31 10:34 UTCEchelonGraph re-scored
  23. 2026-10-31 10:34 UTCVendor advisory
  24. 2026-10-31 10:34 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  25. 2026-10-30 16:30 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  26. 2026-10-30 08:49 UTCEchelonGraph re-scored
  27. 2026-10-30 08:49 UTCVendor advisory
  28. 2026-10-30 08:49 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  29. 2026-10-29 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  30. 2026-10-29 07:05 UTCEchelonGraph re-scored
  31. 2026-10-29 07:05 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  32. 2026-10-28 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  33. 2026-10-28 05:21 UTCEchelonGraph re-scored
  34. 2026-10-28 05:21 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  35. 2026-10-27 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  36. 2026-10-27 03:37 UTCEchelonGraph re-scored
  37. 2026-10-27 03:37 UTCVendor advisory
  38. 2026-10-27 03:37 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  39. 2026-10-26 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  40. 2026-10-25 21:41 UTCVendor advisory
  41. 2026-10-25 21:41 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  42. 2026-10-25 18:03 UTCEchelonGraph re-scored
  43. 2026-10-25 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  44. 2026-10-24 19:39 UTCEchelonGraph re-scored
  45. 2026-10-24 19:39 UTCVendor advisory
  46. 2026-10-24 19:39 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  47. 2026-10-24 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  48. 2026-10-23 17:55 UTCEchelonGraph re-scored
  49. 2026-10-23 17:55 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  50. 2026-10-23 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  51. 2026-10-22 16:30 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  52. 2026-10-22 16:10 UTCEchelonGraph re-scored
  53. 2026-10-22 16:10 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  54. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  55. 2026-10-21 14:03 UTCEchelonGraph re-scored
  56. 2026-10-21 14:03 UTCVendor advisory
  57. 2026-10-21 14:03 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  58. 2026-10-20 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  59. 2026-10-20 12:06 UTCEchelonGraph re-scored
  60. 2026-10-20 12:05 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  61. 2026-10-19 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  62. 2026-10-19 10:18 UTCEchelonGraph re-scored
  63. 2026-10-19 10:18 UTCVendor advisory
  64. 2026-10-19 10:17 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  65. 2026-10-18 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  66. 2026-10-18 07:15 UTCEchelonGraph re-scored
  67. 2026-10-18 07:15 UTCVendor advisory
  68. 2026-10-18 07:15 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  69. 2026-10-17 16:29 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  70. 2026-10-17 05:29 UTCEchelonGraph re-scored
  71. 2026-10-17 05:28 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  72. 2026-10-16 16:35 UTCEPSS rescoreEPSS 1.7% · 77th percentile
  73. 2026-10-16 03:42 UTCEchelonGraph re-scored
  74. 2026-10-16 03:41 UTCGHSA enrichmentGHSA-4xpq-qfh7-r9h2 · GitHub severity CRITICAL · GitHub CVSS 10.0
  75. 2026-10-15 16:28 UTCEPSS rescoreEPSS 1.7% · 77th percentile

Frequently asked(5)

What is CVE-2022-36648?
CVE-2022-36648 is a critical-severity vulnerability; its CVE record was published on August 22, 2023. The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially execute code on the host via execute a malformed program in the guest OS. Note: This has been disputed by multiple third…
When was the CVE record for CVE-2022-36648 published?
The CVE record for CVE-2022-36648 was published on August 22, 2023. 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 21, 2024; the record at its source may have been updated since.
Is CVE-2022-36648 actively exploited?
CVE-2022-36648 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.7% probability of exploitation in the next 30 days (78th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-36648?
CVE-2022-36648 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2022-36648?
A fix for CVE-2022-36648 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-36648 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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