CVE-2026-62357

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (42nd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated
8.8EG
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).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.40.0, CMS.INITBYDIM and CMS.INITBYPROB accept dimensions whose width times depth times sizeof(int64_t) overflows in src/core/cms.cc, allocating an undersized counter buffer while CMS.INCRBY and CMS.QUERY use the unbounded dimensions, which allows an unauthenticated remote client to corrupt or disclose adjacent heap memory and crash the server. This issue is fixed in version 1.40.0.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
71
EG Risk 71/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

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 public PoC (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

August 18, 2026

Last Modified

September 10, 2026

Advisory Details (4)

Auto-updated Aug 18, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
GitHub release Patch Available

v1.40.0

Patch available: dragonflydb/dragonfly v1.40.0

https://github.com/dragonflydb/dragonfly/releases/tag/v1.40.0
GitHub commit

commit c004623249fe (dragonflydb/dragonfly)

Fix landed in dragonflydb/dragonfly commit c004623249fe — awaiting tagged release

https://github.com/dragonflydb/dragonfly/commit/c004623249fe2151dc5d64e21364fb9fb07c90d3
GitHub pull request

fix: bound CMS dimensions to prevent heap overflow on INITBYDIM/INITBYPROB

Fix merged in dragonflydb/dragonfly PR #7647 on 2026-06-19 — awaiting tagged release

https://github.com/dragonflydb/dragonfly/pull/7647
GitHub advisoryMentions a patch (unverified)

DragonflyDB `CMS.INITBYDIM` integer overflow leads to a remote, attacker-controlled heap out-of-bounds write · Advisory · dragonflydb/dragonfly · GitHub

https://github.com/dragonflydb/dragonfly/security/advisories/GHSA-cmmv-h748-v93x

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-13 12:56 UTCEG score recompute
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  4. 2026-10-12 15:49 UTCEG score recompute
  5. 2026-10-11 19:34 UTCEG score recompute
  6. 2026-10-11 16:49 UTCEG score recompute
  7. 2026-10-11 14:11 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-06 21:39 UTCEG score recompute
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-06 08:24 UTCEG score recompute
  16. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  17. 2026-10-05 09:37 UTCEG score recompute
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  19. 2026-10-03 17:40 UTCEG score recompute
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-03 03:32 UTCEG score recompute
  22. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-02 01:28 UTCEG score recompute
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  25. 2026-09-30 21:44 UTCEG score recompute
Show 67 more
  1. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-09-30 09:51 UTCEG score recompute
  3. 2026-09-28 21:56 UTCEG score recompute
  4. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-09-27 21:19 UTCEG score recompute
  6. 2026-09-27 07:57 UTCEG score recompute
  7. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-09-25 01:29 UTCEG score recompute
  9. 2026-09-24 00:10 UTCEG score recompute
  10. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-09-23 00:16 UTCEG score recompute
  12. 2026-09-22 00:28 UTCEG score recompute
  13. 2026-09-20 00:00 UTCEG score recompute
  14. 2026-09-19 00:13 UTCEG score recompute
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  16. 2026-09-18 00:15 UTCEG score recompute
  17. 2026-09-16 22:58 UTCEG score recompute
  18. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  19. 2026-09-16 10:08 UTCEG score recompute
  20. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  21. 2026-09-15 08:25 UTCEG score recompute
  22. 2026-09-13 20:43 UTCEG score recompute
  23. 2026-09-12 20:56 UTCEG score recompute
  24. 2026-09-11 21:10 UTCEG score recompute
  25. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  26. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  27. 2026-09-10 15:05 UTCEG score recompute
  28. 2026-09-09 03:26 UTCEG score recompute
  29. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  30. 2026-09-07 22:19 UTCEG score recompute
  31. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  32. 2026-09-06 22:11 UTCEG score recompute
  33. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  34. 2026-09-05 22:20 UTCEG score recompute
  35. 2026-09-04 22:20 UTCEG score recompute
  36. 2026-09-04 10:25 UTCEG score recompute
  37. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  38. 2026-09-02 21:57 UTCEG score recompute
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  40. 2026-09-01 21:34 UTCEG score recompute
  41. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  42. 2026-08-31 03:34 UTCEG score recompute
  43. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  44. 2026-08-30 03:47 UTCEG score recompute
  45. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  46. 2026-08-29 03:58 UTCEG score recompute
  47. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  48. 2026-08-28 01:41 UTCEG score recompute
  49. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  50. 2026-08-27 01:54 UTCEG score recompute
  51. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  52. 2026-08-25 14:14 UTCEG score recompute
  53. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  54. 2026-08-24 14:27 UTCEG score recompute
  55. 2026-08-23 02:41 UTCEG score recompute
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  57. 2026-08-22 02:55 UTCEG score recompute
  58. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  59. 2026-08-21 03:07 UTCEG score recompute
  60. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  61. 2026-08-20 03:20 UTCEG score recompute
  62. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  63. 2026-08-19 15:25 UTCEG score recompute
  64. 2026-08-19 14:58 UTCEG score recompute
  65. 2026-08-18 16:33 UTCEG score recompute
  66. 2026-08-18 15:31 UTCEG score recomputeFirst assessed: 8.8 HIGH
  67. 2026-08-18 15:29 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-62357?
CVE-2026-62357 is a high-severity vulnerability; its CVE record was published on August 18, 2026. Dragonfly is an in-memory data store built for modern application workloads. Prior to 1.40.0, CMS.INITBYDIM and CMS.INITBYPROB accept dimensions whose width times depth times sizeof(int64_t) overflows in src/core/cms.cc, allocating an undersized counter buffer while CMS.INCRBY and CMS.QUERY use the…
When was the CVE record for CVE-2026-62357 published?
The CVE record for CVE-2026-62357 was published on August 18, 2026. 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 September 10, 2026; the record at its source may have been updated since.
Is CVE-2026-62357 actively exploited?
CVE-2026-62357 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62357?
CVE-2026-62357 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62357?
A fix for CVE-2026-62357 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-62357

Explore →

Is Your Infrastructure Affected by CVE-2026-62357?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs