CVE-2015-0565

CRITICALNVD 10.010.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 10.0 under NVD CVSS v3. EPSS exploit probability: 14% (96th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
10.0EG
EchelonGraph verdictMitigate this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Exploit-DB (verified), epss top5pct, public exploit)
CISA-KEV: Not listedEPSS PROB: 14%CVSS: 10.0Exploit: Exploit-DB (verified) · epss top5pct · public exploitExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

NaCl in 2015 allowed the CLFLUSH instruction, making rowhammer attacks possible.

CVSS v3
10.0
EG Score
10.0CRITICALmedium confidence
EG Risk
76
EG Risk 76/100CISA SSVC

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
Severity100% × 45%
Exploitation65% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
14%
EPSS %ILE
96th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

February 25, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Oct 4, 2026
🔬 Proof of concept available. No fix on record yet.
generic🟡 PoC Available

Rowhammer - NaCl Sandbox Escape - Linux_x86-64 local Exploit

https://www.exploit-db.com/exploits/36311/
generic🟡 PoC Available

Linux Kernel (x86-64) - Rowhammer Privilege Escalation - Linux_x86-64 local Exploit

https://www.exploit-db.com/exploits/36310/
generic🟡 PoC Available

Exploiting the DRAM rowhammer bug to gain kernel privileges - Project Zero

https://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
nacl20110221-10 ... 20110221-9 (12 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
nacl20110221-12, 20110221-13, 20110221-13~exp1, 20110221-14, 20110221-15
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
nacl20110221-15
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
nacl20110221-15
  • 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 5× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 138 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-03 14:21 UTCEPSS rescore
  3. 2026-10-01 19:43 UTCEPSS rescore
  4. 2026-09-30 14:58 UTCEPSS rescore
  5. 2026-09-30 09:00 UTCEG score recompute
  6. 2026-09-28 13:45 UTCEPSS rescore
  7. 2026-09-27 13:40 UTCEPSS rescore
  8. 2026-09-27 13:40 UTCEPSS rescore
  9. 2026-09-26 15:53 UTCEPSS rescore
  10. 2026-09-19 18:00 UTCOSV refresh
  11. 2026-09-19 15:35 UTCEPSS rescore
  12. 2026-09-18 19:22 UTCEPSS rescore
  13. 2026-09-17 19:21 UTCEPSS rescore
  14. 2026-09-15 03:05 UTCEPSS rescore
  15. 2026-09-12 14:55 UTCEPSS rescore
  16. 2026-09-11 09:31 UTCEPSS rescore
  17. 2026-09-10 09:26 UTCEPSS rescore
  18. 2026-09-07 15:56 UTCEPSS rescore
  19. 2026-09-06 13:42 UTCEPSS rescore
  20. 2026-09-05 15:23 UTCEPSS rescore
  21. 2026-09-04 13:55 UTCEPSS rescore
  22. 2026-09-02 14:07 UTCEPSS rescore
  23. 2026-09-01 03:31 UTCEPSS rescore
  24. 2026-08-31 21:04 UTCOSV refresh
  25. 2026-08-30 19:12 UTCEPSS rescore
Show 75 more
  1. 2026-08-27 14:20 UTCEPSS rescore
  2. 2026-08-26 14:41 UTCEPSS rescore
  3. 2026-08-25 13:44 UTCEPSS rescore
  4. 2026-08-21 23:44 UTCEPSS rescore
  5. 2026-08-20 22:50 UTCEPSS rescore
  6. 2026-08-19 16:59 UTCEPSS rescore
  7. 2026-08-18 13:43 UTCEPSS rescore
  8. 2026-08-16 14:51 UTCEPSS rescore
  9. 2026-08-16 02:09 UTCEPSS rescore
  10. 2026-08-15 01:25 UTCEPSS rescore
  11. 2026-08-14 23:24 UTCOSV refresh
  12. 2026-08-12 13:46 UTCEPSS rescore
  13. 2026-08-09 13:42 UTCEPSS rescore
  14. 2026-08-08 16:31 UTCEPSS rescore
  15. 2026-08-07 16:22 UTCEPSS rescore
  16. 2026-08-06 13:42 UTCEPSS rescore
  17. 2026-08-05 19:12 UTCEPSS rescore
  18. 2026-08-04 15:04 UTCEPSS rescore
  19. 2026-08-02 02:22 UTCEPSS rescore
  20. 2026-08-01 04:11 UTCEPSS rescore
  21. 2026-07-30 16:23 UTCEPSS rescore
  22. 2026-07-30 11:44 UTCOSV refresh
  23. 2026-07-30 01:26 UTCEPSS rescore
  24. 2026-07-28 15:31 UTCEPSS rescore
  25. 2026-07-26 14:50 UTCEPSS rescore
  26. 2026-07-24 14:13 UTCEPSS rescore
  27. 2026-07-23 14:14 UTCEPSS rescore
  28. 2026-07-23 01:15 UTCEG score recompute
  29. 2026-07-23 00:18 UTCEG score recompute
  30. 2026-07-22 21:57 UTCEG score recompute
  31. 2026-07-22 14:04 UTCEPSS rescore
  32. 2026-07-21 15:21 UTCEPSS rescore
  33. 2026-07-21 15:21 UTCEPSS rescore
  34. 2026-07-20 17:03 UTCEPSS rescore
  35. 2026-07-19 02:26 UTCEPSS rescore
  36. 2026-07-19 02:26 UTCEPSS rescore
  37. 2026-07-18 10:00 UTCEPSS rescore
  38. 2026-07-16 16:59 UTCEPSS rescore
  39. 2026-07-16 16:59 UTCEPSS rescore
  40. 2026-07-15 16:54 UTCEPSS rescore
  41. 2026-07-15 16:54 UTCEPSS rescore
  42. 2026-07-15 01:56 UTCEPSS rescore
  43. 2026-07-13 22:26 UTCEPSS rescore
  44. 2026-07-12 21:07 UTCOSV refresh
  45. 2026-07-12 05:42 UTCEPSS rescore
  46. 2026-07-11 08:23 UTCEPSS rescore
  47. 2026-07-09 19:05 UTCEPSS rescore
  48. 2026-07-08 15:10 UTCEPSS rescore
  49. 2026-07-07 13:42 UTCEPSS rescore
  50. 2026-07-06 16:24 UTCEPSS rescore
  51. 2026-07-06 02:20 UTCEPSS rescore
  52. 2026-07-05 02:26 UTCEPSS rescore
  53. 2026-07-02 15:21 UTCEPSS rescore
  54. 2026-07-01 15:02 UTCEPSS rescore
  55. 2026-07-01 15:02 UTCEPSS rescore
  56. 2026-06-30 23:19 UTCEPSS rescore
  57. 2026-06-30 23:19 UTCEPSS rescore
  58. 2026-06-29 14:03 UTCEPSS rescore
  59. 2026-06-28 14:03 UTCEPSS rescore
  60. 2026-06-28 04:53 UTCEPSS rescore
  61. 2026-06-27 03:05 UTCEPSS rescore
  62. 2026-06-25 13:47 UTCEPSS rescore
  63. 2026-06-25 13:47 UTCEPSS rescore
  64. 2026-06-24 14:02 UTCEPSS rescore
  65. 2026-06-24 14:02 UTCEPSS rescore
  66. 2026-06-24 06:50 UTCOSV refresh
  67. 2026-06-23 21:30 UTCEPSS rescore
  68. 2026-06-21 14:54 UTCEPSS rescore
  69. 2026-06-21 01:57 UTCEPSS rescore
  70. 2026-06-21 01:57 UTCEPSS rescore
  71. 2026-06-19 19:23 UTCEPSS rescore
  72. 2026-06-19 19:23 UTCEPSS rescore
  73. 2026-06-18 17:50 UTCEPSS rescore
  74. 2026-06-18 17:49 UTCEPSS rescore
  75. 2026-06-17 17:49 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-36310✓ verified
    First seen Mar 9, 2015

    Linux Kernel (x86-64) - Rowhammer Privilege Escalation

    Open source ↗
  • Exploit-DBEDB-36311✓ verified
    First seen Mar 9, 2015

    Rowhammer - NaCl Sandbox Escape

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2015-0565?
CVE-2015-0565 is a critical vulnerability published on February 25, 2020. NaCl in 2015 allowed the CLFLUSH instruction, making rowhammer attacks possible.
When was CVE-2015-0565 disclosed?
CVE-2015-0565 was first published on February 25, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2015-0565 actively exploited?
CVE-2015-0565 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 14% probability of exploitation in the next 30 days (96th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2015-0565?
CVE-2015-0565 has a CVSS v3 base score of 10.0 (NVD).
How do I remediate CVE-2015-0565?
No fix for CVE-2015-0565 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix.

Dependency Blast Radius

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