CVE-2023-53372

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-09-18. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

sctp: fix a potential overflow in sctp_ifwdtsn_skip

Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference it as struct sctp_ifwdtsn_skip may cause coverflow.

This patch fixes it by checking the pos against "the end of the chunk - sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to sctp_fwdtsn_skip.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

September 18, 2025

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7
generic

sctp: fix a potential overflow in sctp_ifwdtsn_skip - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4

Vendor Advisories for CVE-2023-53372(5)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-305.194.1.el8_42026-06-17redhat
redhatkernel-0:4.18.0-372.195.1.el8_62026-06-12redhat
redhatkernel-0:4.18.0-477.43.1.el8_82024-01-30redhat
redhatkernel-0:4.18.0-513.5.1.el8_92023-11-14redhat
redhatkernel-0:5.14.0-362.8.1.el9_32023-11-07redhat
linuxKernel @ 4.19.281—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 48× 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 113 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2023-53372?
CVE-2023-53372 is a high vulnerability published on September 18, 2025. In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctpifwdtsnskip Currently, when traversing ifwdtsn skips with sctpwalk_ifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be < sizeof(struct…
When was CVE-2023-53372 disclosed?
CVE-2023-53372 was first published in the National Vulnerability Database on September 18, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-53372 actively exploited?
CVE-2023-53372 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.3% of all scored CVEs.
What is the CVSS score of CVE-2023-53372?
CVE-2023-53372 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-53372?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53372, 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

Explore the affected products and dependency analysis for CVE-2023-53372

Explore →

Is Your Infrastructure Affected by CVE-2023-53372?

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

Start Free Scan →Browse All CVEs