CVE-2023-52745

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-05-21. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

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

IB/IPoIB: Fix legacy IPoIB due to wrong number of queues

The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues.

This patch fixes the number of queues to 1 for legacy IPoIB at the earliest possible point in time.

BUG: kernel NULL pointer dereference, address: 000000000000036b PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 4 PID: 209665 Comm: python3 Not tainted 6.1.0_for_upstream_min_debug_2022_12_12_17_02 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:kmem_cache_alloc+0xcb/0x450 Code: ce 7e 49 8b 50 08 49 83 78 10 00 4d 8b 28 0f 84 cb 02 00 00 4d 85 ed 0f 84 c2 02 00 00 41 8b 44 24 28 48 8d 4a 01 49 8b 3c 24 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0f 0f 94 c0 84 c0 74 b8 41 8b RSP: 0018:ffff88822acbbab8 EFLAGS: 00010202 RAX: 0000000000000070 RBX: ffff8881c28e3e00 RCX: 00000000064f8dae RDX: 00000000064f8dad RSI: 0000000000000a20 RDI: 0000000000030d00 RBP: 0000000000000a20 R08: ffff8882f5d30d00 R09: ffff888104032f40 R10: ffff88810fade828 R11: 736f6d6570736575 R12: ffff88810081c000 R13: 00000000000002fb R14: ffffffff817fc865 R15: 0000000000000000 FS: 00007f9324ff9700(0000) GS:ffff8882f5d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000036b CR3: 00000001125af004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_clone+0x55/0xd0 ip6_finish_output2+0x3fe/0x690 ip6_finish_output+0xfa/0x310 ip6_send_skb+0x1e/0x60 udp_v6_send_skb+0x1e5/0x420 udpv6_sendmsg+0xb3c/0xe60 ? ip_mc_finish_output+0x180/0x180 ? __switch_to_asm+0x3a/0x60 ? __switch_to_asm+0x34/0x60 sock_sendmsg+0x33/0x40 __sys_sendto+0x103/0x160 ? _copy_to_user+0x21/0x30 ? kvm_clock_get_cycles+0xd/0x10 ? ktime_get_ts64+0x49/0xe0 __x64_sys_sendto+0x25/0x30 do_syscall_64+0x3d/0x90 entry_SYSCALL_64_after_hwframe+0x46/0xb0 RIP: 0033:0x7f9374f1ed14 Code: 42 41 f8 ff 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 68 41 f8 ff 48 8b RSP: 002b:00007f9324ff7bd0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f9324ff7cc8 RCX: 00007f9374f1ed14 RDX: 00000000000002fb RSI: 00007f93000052f0 RDI: 0000000000000030 RBP: 0000000000000000 R08: 00007f9324ff7d40 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 000000012a05f200 R14: 0000000000000001 R15: 00007f9374d57bdc

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

May 21, 2024

Last Modified

March 6, 2025

References (10)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.4.232—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 10× in last 7d / 41× 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 103 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-52745?
CVE-2023-52745 is a medium vulnerability published on May 21, 2024. In the Linux kernel, the following vulnerability has been resolved: IB/IPoIB: Fix legacy IPoIB due to wrong number of queues The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a…
When was CVE-2023-52745 disclosed?
CVE-2023-52745 was first published in the National Vulnerability Database on May 21, 2024, with the most recent update on March 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-52745 actively exploited?
CVE-2023-52745 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 83.5% of all scored CVEs.
What is the CVSS score of CVE-2023-52745?
CVE-2023-52745 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-52745?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-52745, 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-2023-52745

Explore →

Is Your Infrastructure Affected by CVE-2023-52745?

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

Start Free Scan →Browse All CVEs