CVE-2022-34835

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-07-01. NVD baseline CVSS 9.8; sources differ by 0.0.

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

Also known asEUVD-2022-37741 (ENISA EUVD) · GHSA-9gfq-p9vq-r563 (GitHub Security Advisories)Source: ENISA EUVD

9.8EG
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: 2.3%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
45
EG Risk 45/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation2.3% × 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
2.3%
EPSS %ILE
83rd
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
2.3% 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; 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

June 30, 2022

Last Modified

May 12, 2026

Advisory Details (5)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit.
Web page

i2c: fix stack buffer overflow vulnerability in i2c md command (8f8c04bf) · Commits · u-boot / U-Boot · GitLab

https://source.denx.de/u-boot/u-boot/-/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4150-1] u-boot security update

https://lists.debian.org/debian-lts-announce/2025/05/msg00001.html
GitHub commit

commit 8f8c04bf1ebb (u-boot/u-boot)

Fix landed in u-boot/u-boot commit 8f8c04bf1ebb — awaiting tagged release

https://github.com/u-boot/u-boot/commit/8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
Web page

[PATCH] i2c: fix stack buffer overflow vulnerability in i2c md command

https://lists.denx.de/pipermail/u-boot/2022-June/486113.html

Vendor Advisories for CVE-2022-34835(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
ubuntuu-boot-exynos (2022.07+dfsg-1ubuntu4.2) @ kinetic2026-11-12ubuntu

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
u-boot2021.01+dfsg-5
  • every version up to 2021.01+dfsg-5+deb11u1: fixed in 2021.01+dfsg-5+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
u-boot—
  • every version up to 2022.07+dfsg-1: fixed in 2022.07+dfsg-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
u-boot—
  • every version up to 2022.07+dfsg-1: fixed in 2022.07+dfsg-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
u-boot—
  • every version up to 2022.07+dfsg-1: fixed in 2022.07+dfsg-1
—

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 16× in last 7d / 77× 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 357 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 257 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 17:20 UTCEchelonGraph re-scored
  2. 2026-11-12 17:20 UTCVendor advisory
  3. 2026-11-12 17:20 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-12 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  5. 2026-11-11 18:37 UTCEchelonGraph re-scored
  6. 2026-11-11 18:37 UTCVendor advisory
  7. 2026-11-11 18:36 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-11-11 16:32 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  9. 2026-11-10 19:53 UTCEchelonGraph re-scored
  10. 2026-11-10 19:53 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-11-10 16:36 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  12. 2026-11-09 21:00 UTCEchelonGraph re-scored
  13. 2026-11-09 21:00 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-11-09 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  15. 2026-11-08 22:17 UTCEchelonGraph re-scored
  16. 2026-11-08 22:17 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-11-08 16:34 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  18. 2026-11-07 23:32 UTCEchelonGraph re-scored
  19. 2026-11-07 23:31 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-11-07 16:34 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  21. 2026-11-07 00:48 UTCEchelonGraph re-scored
  22. 2026-11-07 00:48 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-11-06 16:30 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  24. 2026-11-06 02:05 UTCEchelonGraph re-scored
  25. 2026-11-06 02:05 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
Show 75 more
  1. 2026-11-05 16:32 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  2. 2026-11-05 03:21 UTCEchelonGraph re-scored
  3. 2026-11-05 03:21 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-11-04 16:30 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  5. 2026-11-04 04:38 UTCEchelonGraph re-scored
  6. 2026-11-04 04:38 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-11-04 04:25 UTCOSV refresh
  8. 2026-11-03 16:39 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  9. 2026-11-03 05:54 UTCEchelonGraph re-scored
  10. 2026-11-03 05:54 UTCVendor advisory
  11. 2026-11-03 05:54 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  12. 2026-11-02 16:38 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  13. 2026-11-02 07:10 UTCEchelonGraph re-scored
  14. 2026-11-02 07:10 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-11-01 16:30 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  16. 2026-11-01 08:26 UTCEchelonGraph re-scored
  17. 2026-11-01 08:26 UTCVendor advisory
  18. 2026-11-01 08:26 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-31 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  20. 2026-10-31 09:42 UTCEchelonGraph re-scored
  21. 2026-10-31 09:42 UTCVendor advisory
  22. 2026-10-31 09:42 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-30 16:30 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  24. 2026-10-30 11:00 UTCEchelonGraph re-scored
  25. 2026-10-30 11:00 UTCVendor advisory
  26. 2026-10-30 10:59 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  27. 2026-10-29 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  28. 2026-10-29 12:17 UTCEchelonGraph re-scored
  29. 2026-10-29 12:16 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  30. 2026-10-28 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  31. 2026-10-28 13:26 UTCEchelonGraph re-scored
  32. 2026-10-28 13:26 UTCVendor advisory
  33. 2026-10-28 13:26 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-10-27 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  35. 2026-10-27 14:37 UTCEchelonGraph re-scored
  36. 2026-10-27 14:36 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  37. 2026-10-26 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  38. 2026-10-26 15:48 UTCVendor advisory
  39. 2026-10-26 15:48 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  40. 2026-10-25 17:05 UTCEchelonGraph re-scored
  41. 2026-10-25 17:04 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  42. 2026-10-25 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  43. 2026-10-24 18:19 UTCEchelonGraph re-scored
  44. 2026-10-24 18:19 UTCVendor advisory
  45. 2026-10-24 18:19 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  46. 2026-10-24 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  47. 2026-10-23 19:37 UTCEchelonGraph re-scored
  48. 2026-10-23 19:37 UTCVendor advisory
  49. 2026-10-23 19:37 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-10-23 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  51. 2026-10-22 20:45 UTCEchelonGraph re-scored
  52. 2026-10-22 20:45 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  53. 2026-10-22 16:30 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  54. 2026-10-21 21:57 UTCEchelonGraph re-scored
  55. 2026-10-21 21:57 UTCVendor advisory
  56. 2026-10-21 21:57 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-10-21 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  58. 2026-10-20 22:50 UTCEchelonGraph re-scored
  59. 2026-10-20 22:50 UTCVendor advisory
  60. 2026-10-20 22:50 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-10-20 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  62. 2026-10-19 23:42 UTCEchelonGraph re-scored
  63. 2026-10-19 23:42 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-10-19 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  65. 2026-10-18 23:05 UTCEchelonGraph re-scored
  66. 2026-10-18 23:05 UTCVendor advisory
  67. 2026-10-18 23:05 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-10-18 16:28 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  69. 2026-10-18 08:32 UTCEchelonGraph re-scored
  70. 2026-10-18 00:21 UTCEchelonGraph re-scored
  71. 2026-10-18 00:21 UTCVendor advisory
  72. 2026-10-18 00:21 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-10-17 16:29 UTCEPSS rescoreEPSS 2.3% · 83rd percentile
  74. 2026-10-17 01:34 UTCEchelonGraph re-scored
  75. 2026-10-17 01:34 UTCGHSA enrichmentGHSA-9gfq-p9vq-r563 · GitHub severity CRITICAL · GitHub CVSS 9.8

Frequently asked(5)

What is CVE-2022-34835?
CVE-2022-34835 is a critical-severity vulnerability; its CVE record was published on June 30, 2022. In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.
When was the CVE record for CVE-2022-34835 published?
The CVE record for CVE-2022-34835 was published on June 30, 2022. 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 May 12, 2026; the record at its source may have been updated since.
Is CVE-2022-34835 actively exploited?
CVE-2022-34835 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.3% probability of exploitation in the next 30 days (83rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-34835?
CVE-2022-34835 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-34835?
A fix for CVE-2022-34835 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-34835 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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