CVE-2023-43615

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-10-07. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

October 7, 2023

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Jun 12, 2026
No patch confirmed yet.
generic

Buffer overread in TLS stream cipher suites — Mbed TLS documentation

https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2023-10-1/
generic

[SECURITY] Fedora 38 Update: mbedtls-2.28.5-1.fc38 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7SB7L6A56QZALDTOZ6O4X7PTC4I647R/
generic

[SECURITY] Fedora 37 Update: mbedtls-2.28.5-1.fc37 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GGRB5MO2KUJKYPMGXMIZH2WRH6QR5UZS/
generic

[SECURITY] Fedora 39 Update: mbedtls-2.28.5-1.fc39 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BDSHAANRULB57GVS5B3DZHXL5KCC7OWQ/

Vendor Advisories for CVE-2023-43615(1)

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

Affected Packages

(13 across 13 ecosystems)
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
mbedtls2.16.11-0.1 ... 3.6.7-3 (37 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
mbedtls2.28.3-1 ... 3.6.7-3 (22 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
mbedtls—2.28.5-1—

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 7× in last 7d / 31× 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 183 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-43615?
CVE-2023-43615 is a high vulnerability published on October 7, 2023. Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.
When was CVE-2023-43615 disclosed?
CVE-2023-43615 was first published in the National Vulnerability Database on October 7, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-43615 actively exploited?
CVE-2023-43615 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.7% of all scored CVEs.
What is the CVSS score of CVE-2023-43615?
CVE-2023-43615 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2023-43615?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-43615, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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