CVE-2024-22051

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.5% (73rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
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: 1.5%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

CommonMarker versions prior to 0.23.4 are at risk of an integer overflow vulnerability. This vulnerability can result in possibly unauthenticated remote attackers to cause heap memory corruption, potentially leading to an information leak or remote code execution, via parsing tables with marker rows that contain more than UINT16_MAX columns.

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.
Exploitation1.5% × 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
1.5%
EPSS %ILE
73rd
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.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
1.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). 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 (CISA Vulnrichment) · Automatable no (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)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 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

January 4, 2024

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Oct 18, 2026
Patch available. Sources: github, github_commit.
Web page

CommonMarker Integer Overflow Vulnerability | Advisories | VulnCheck

https://vulncheck.com/advisories/vc-advisory-GHSA-fmx4-26r3-wxpf
GitHub advisoryMentions a patch (unverified)

Integer overflow in cmark-gfm table parsing extension leads to heap memory corruption · Advisory · gjtorikian/commonmarker · GitHub

https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-fmx4-26r3-wxpf
GitHub commit Patch Available

commit ab4504fd1746 (gjtorikian/commonmarker)

Patch available: gjtorikian/commonmarker v1.1.5 (contains commit ab4504fd1746)

https://github.com/gjtorikian/commonmarker/commit/ab4504fd17460627a6ab255bc3c63e8e5fc6aed3
GitHub advisoryMentions a patch (unverified)

Integer overflow in table parsing extension leads to heap memory corruption · Advisory · github/cmark-gfm · GitHub

https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x
GitHub advisoryMentions a patch (unverified)

Integer overflow in cmark-gfm table parsing extension leads to heap memory corruption · CVE-2024-22051 · GitHub Advisory Database · GitHub

https://github.com/advisories/GHSA-fmx4-26r3-wxpf

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-commonmarker0.21.0-1 ... 2.8.3-1 (11 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-commonmarker—
  • every version up to 0.23.4-1: fixed in 0.23.4-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-commonmarker—
  • every version up to 0.23.4-1: fixed in 0.23.4-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
ruby-commonmarker—
  • every version up to 0.23.4-1: fixed in 0.23.4-1
—
RubyGems(1)
PackageVulnerable rangeFix by version rangeDependents
commonmarker0.0.1 ... 0.9.2 (75 versions)
  • every version up to 0.23.4: fixed in 0.23.4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 40× 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 96 of 196 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 100 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  2. 2026-10-21 13:31 UTCEG score recompute
  3. 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.5% · 73rd percentile
  4. 2026-10-20 15:32 UTCEG score recompute
  5. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  6. 2026-10-18 18:21 UTCEG score recompute
  7. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  8. 2026-10-18 07:27 UTCEG score recompute
  9. 2026-10-17 20:27 UTCEG score recompute
  10. 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  11. 2026-10-16 22:33 UTCEG score recompute
  12. 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  13. 2026-10-15 19:14 UTCEG score recompute
  14. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  15. 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  16. 2026-10-14 12:59 UTCEG score recompute
  17. 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  18. 2026-10-13 12:52 UTCEG score recompute
  19. 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  20. 2026-10-12 14:59 UTCEG score recompute
  21. 2026-10-12 08:24 UTCOSV refresh
  22. 2026-10-11 21:27 UTCEG score recompute
  23. 2026-10-11 16:21 UTCEG score recompute
  24. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  25. 2026-10-10 19:58 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
Show 71 more
  1. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  2. 2026-10-08 17:07 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  3. 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  4. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  5. 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  6. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  7. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  8. 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  9. 2026-09-30 16:56 UTCEG score recompute
  10. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  11. 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  12. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  13. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  14. 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  15. 2026-09-22 12:15 UTCOSV refresh
  16. 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.5% · 72nd percentile
  17. 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  18. 2026-09-15 03:08 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  19. 2026-09-13 16:45 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  20. 2026-09-12 14:59 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  21. 2026-09-11 14:51 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  22. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  23. 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  24. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  25. 2026-09-06 13:46 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  26. 2026-09-05 15:26 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  27. 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  28. 2026-09-04 05:05 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  29. 2026-09-03 09:00 UTCOSV refresh
  30. 2026-09-02 14:10 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  31. 2026-09-01 13:52 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  32. 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  33. 2026-08-30 01:20 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  34. 2026-08-28 21:39 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  35. 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  36. 2026-08-26 14:44 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  37. 2026-08-25 13:47 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  38. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  39. 2026-08-21 23:47 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  40. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  41. 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  42. 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  43. 2026-08-17 13:45 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  44. 2026-08-16 22:26 UTCOSV refresh
  45. 2026-08-16 14:54 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  46. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  47. 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  48. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.5% · 71st percentile
  49. 2026-08-12 13:49 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  50. 2026-08-11 13:40 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  51. 2026-08-09 13:45 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  52. 2026-08-08 16:35 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  53. 2026-08-06 13:45 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  54. 2026-08-05 19:15 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  55. 2026-08-04 15:08 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  56. 2026-08-04 10:36 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  57. 2026-08-03 10:34 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  58. 2026-08-02 02:25 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  59. 2026-08-01 16:36 UTCOSV refresh
  60. 2026-08-01 04:14 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  61. 2026-07-30 16:26 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  62. 2026-07-30 01:29 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  63. 2026-07-28 15:34 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  64. 2026-07-27 14:11 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  65. 2026-07-26 14:53 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  66. 2026-07-25 14:16 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  67. 2026-07-24 14:16 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  68. 2026-07-23 14:17 UTCEPSS rescoreEPSS 1.5% · 70th percentile
  69. 2026-07-23 02:33 UTCEG score recompute
  70. 2026-07-22 23:20 UTCEG score recompute
  71. 2026-07-22 14:07 UTCEPSS rescoreEPSS 1.5% · 70th percentile

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Frequently asked(5)

What is CVE-2024-22051?
CVE-2024-22051 is a critical-severity vulnerability; its CVE record was published on January 4, 2024. CommonMarker versions prior to 0.23.4 are at risk of an integer overflow vulnerability. This vulnerability can result in possibly unauthenticated remote attackers to cause heap memory corruption, potentially leading to an information leak or remote code execution, via parsing tables with marker…
When was the CVE record for CVE-2024-22051 published?
The CVE record for CVE-2024-22051 was published on January 4, 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 July 14, 2026; the record at its source may have been updated since.
Is CVE-2024-22051 actively exploited?
CVE-2024-22051 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.5% probability of exploitation in the next 30 days (73rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-22051?
CVE-2024-22051 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-22051?
A fix for CVE-2024-22051 is available: update to the fixed version the vendor names in its advisory.

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