CVE-2026-49282

MEDIUMPre-NVD 5.15.1
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (6th 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
5.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (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: 0.2%CVSS: 5.1Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public cs_insn_name() API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue.

CVSS v3
5.1
EG Score
5.1MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

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)
Severity51% × 45%
The EG Score, 5.1 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (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
0.2%
EPSS %ILE
6th
KEV
Not listed

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 public PoC (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.

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

August 14, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
Patch available. Sources: github.
Web page

capstone/ChangeLog at 251c5bb4bc9bb92973e738ae3c5f4ef86f103356 · capstone-engine/capstone · GitHub

https://github.com/capstone-engine/capstone/blob/251c5bb4bc9bb92973e738ae3c5f4ef86f103356/ChangeLog#L102
GitHub advisoryMentions a patch (unverified)

Capstone M68K and RISCV `cs_insn_name()` invalid IDs can trigger out-of-bounds reads and process crashes · Advisory · capstone-engine/capstone · GitHub

https://github.com/capstone-engine/capstone/security/advisories/GHSA-jrw4-wj52-2vw8

Vendor Advisories for CVE-2026-49282(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
capstone4.0.2-5 ... 5.0.9-1 (11 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
capstone5.0.6-1, 5.0.7-1, 5.0.7-1~deb13u1, 5.0.7-2, 5.0.9-1
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
capstone5.0.6-1, 5.0.7-1, 5.0.7-1~deb13u1, 5.0.7-2, 5.0.9-1
  • every version on: no fix on record
—

Weakness Classification(3)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 43× 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 0.2% · 6th percentile
  2. 2026-10-12 16:00 UTCEG score recompute
  3. 2026-10-11 19:43 UTCEG score recompute
  4. 2026-10-11 16:57 UTCEG score recompute
  5. 2026-10-11 14:21 UTCEG score recompute
  6. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  7. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  11. 2026-10-06 18:37 UTCEG score recompute
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-05 20:32 UTCEG score recompute
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-03 19:41 UTCEG score recompute
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-02 07:20 UTCEG score recompute
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-09-30 21:40 UTCEG score recompute
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-09-29 05:46 UTCEG score recompute
  23. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-09-28 07:41 UTCEG score recompute
  25. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 70 more
  1. 2026-09-27 09:37 UTCEG score recompute
  2. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  4. 2026-09-25 08:32 UTCEG score recompute
  5. 2026-09-24 10:18 UTCEG score recompute
  6. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-09-23 12:13 UTCEG score recompute
  8. 2026-09-22 14:08 UTCEG score recompute
  9. 2026-09-21 16:01 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-09-19 18:59 UTCEG score recompute
  12. 2026-09-18 20:09 UTCEG score recompute
  13. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-09-17 22:15 UTCEG score recompute
  15. 2026-09-16 23:49 UTCEG score recompute
  16. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-09-15 19:29 UTCEG score recompute
  19. 2026-09-13 20:03 UTCEG score recompute
  20. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-09-12 21:58 UTCEG score recompute
  22. 2026-09-11 23:52 UTCEG score recompute
  23. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-09-11 01:06 UTCEG score recompute
  25. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-09-09 04:49 UTCEG score recompute
  27. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-09-07 16:21 UTCEG score recompute
  29. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-09-06 15:35 UTCEG score recompute
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-09-05 17:30 UTCEG score recompute
  33. 2026-09-04 19:13 UTCEG score recompute
  34. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  35. 2026-09-01 23:19 UTCEG score recompute
  36. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  37. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  38. 2026-08-31 03:04 UTCEG score recompute
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  40. 2026-08-30 04:59 UTCEG score recompute
  41. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  42. 2026-08-29 06:54 UTCEG score recompute
  43. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  44. 2026-08-27 22:47 UTCEG score recompute
  45. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  46. 2026-08-27 00:42 UTCEG score recompute
  47. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  48. 2026-08-26 02:37 UTCEG score recompute
  49. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.1% · 2nd percentile
  50. 2026-08-25 04:31 UTCEG score recompute
  51. 2026-08-23 08:21 UTCEG score recompute
  52. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  53. 2026-08-22 10:15 UTCEG score recompute
  54. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  55. 2026-08-21 12:09 UTCEG score recompute
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  57. 2026-08-20 14:03 UTCEG score recompute
  58. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  59. 2026-08-18 17:50 UTCEG score recompute
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  61. 2026-08-17 19:28 UTCEG score recompute
  62. 2026-08-17 18:24 UTCEG score recompute
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  64. 2026-08-17 12:49 UTCEG score recompute
  65. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  66. 2026-08-16 14:45 UTCEG score recompute
  67. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-08-14 18:35 UTCEG score recompute
  69. 2026-08-14 17:49 UTCEG score recomputeFirst assessed: 5.1 MEDIUM
  70. 2026-08-14 17:48 UTCMITRE cvelistV5first tracked

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-49282?
CVE-2026-49282 is a medium-severity vulnerability; its CVE record was published on August 14, 2026. Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public csinsnname() API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have…
When was the CVE record for CVE-2026-49282 published?
The CVE record for CVE-2026-49282 was published on August 14, 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 18, 2026; the record at its source may have been updated since.
Is CVE-2026-49282 actively exploited?
CVE-2026-49282 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (6th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49282?
CVE-2026-49282 has a CVSS base score of 5.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49282?
A fix for CVE-2026-49282 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49282 are linked in the Vendor Advisories panel on this page.

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