CVE-2023-52528

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-03-03. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.5Exploit: NoneExposed: 0

A fix is available — apply it.

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

net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg

syzbot reported the following uninit-value access issue:

===================================================== BUG: KMSAN: uninit-value in smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline] BUG: KMSAN: uninit-value in smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482 CPU: 0 PID: 8696 Comm: kworker/0:3 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x21c/0x280 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:975 [inline] smsc75xx_bind+0x5c9/0x11e0 drivers/net/usb/smsc75xx.c:1482 usbnet_probe+0x1152/0x3f90 drivers/net/usb/usbnet.c:1737 usb_probe_interface+0xece/0x1550 drivers/usb/core/driver.c:374 really_probe+0xf20/0x20b0 drivers/base/dd.c:529 driver_probe_device+0x293/0x390 drivers/base/dd.c:701 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431 __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873 device_initial_probe+0x4a/0x60 drivers/base/dd.c:920 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491 device_add+0x3b0e/0x40d0 drivers/base/core.c:2680 usb_set_configuration+0x380f/0x3f10 drivers/usb/core/message.c:2032 usb_generic_driver_probe+0x138/0x300 drivers/usb/core/generic.c:241 usb_probe_device+0x311/0x490 drivers/usb/core/driver.c:272 really_probe+0xf20/0x20b0 drivers/base/dd.c:529 driver_probe_device+0x293/0x390 drivers/base/dd.c:701 __device_attach_driver+0x63f/0x830 drivers/base/dd.c:807 bus_for_each_drv+0x2ca/0x3f0 drivers/base/bus.c:431 __device_attach+0x4e2/0x7f0 drivers/base/dd.c:873 device_initial_probe+0x4a/0x60 drivers/base/dd.c:920 bus_probe_device+0x177/0x3d0 drivers/base/bus.c:491 device_add+0x3b0e/0x40d0 drivers/base/core.c:2680 usb_new_device+0x1bd4/0x2a30 drivers/usb/core/hub.c:2554 hub_port_connect drivers/usb/core/hub.c:5208 [inline] hub_port_connect_change drivers/usb/core/hub.c:5348 [inline] port_event drivers/usb/core/hub.c:5494 [inline] hub_event+0x5e7b/0x8a70 drivers/usb/core/hub.c:5576 process_one_work+0x1688/0x2140 kernel/workqueue.c:2269 worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415 kthread+0x551/0x590 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293

Local variable ----buf.i87@smsc75xx_bind created at: __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline] smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline] smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482 __smsc75xx_read_reg drivers/net/usb/smsc75xx.c:83 [inline] smsc75xx_wait_ready drivers/net/usb/smsc75xx.c:968 [inline] smsc75xx_bind+0x485/0x11e0 drivers/net/usb/smsc75xx.c:1482

This issue is caused because usbnet_read_cmd() reads less bytes than requested (zero byte in the reproducer). In this case, 'buf' is not properly filled.

This patch fixes the issue by returning -ENODATA if usbnet_read_cmd() reads less bytes than requested.

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
13.7%
KEV
Not listed

Published

March 2, 2024

Last Modified

December 11, 2024

References (16)

Vendor Advisories for CVE-2023-52528(2)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-edge (4.15.0.1182.197~16.04.1) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.230.242~16.04.1) @ xenial2026-05-24ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.260.266) @ xenial2026-05-24ubuntu
redhatkernel-0:5.14.0-427.66.1.el9_42025-04-30redhat
redhatkernel-0:5.14.0-503.11.1.el9_52024-11-12redhat
redhatkernel-0:4.18.0-553.5.1.el8_102024-06-05redhat
redhatkernel-rt-0:4.18.0-553.5.1.rt7.346.el8_102024-06-05redhat
linuxKernel @ 4.14.327—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.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× 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.

  1. 2026-07-23 02:29 UTCEG score recompute
  2. 2026-07-22 23:15 UTCEG score recompute
  3. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-07 13:45 UTCEPSS rescore
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  17. 2026-06-26 19:07 UTCOSV refresh
  18. 2026-06-25 13:48 UTCEPSS rescore
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  40. 2026-06-12 23:11 UTCEPSS rescore
  41. 2026-06-11 13:59 UTCEPSS rescore
  42. 2026-06-10 13:21 UTCEPSS rescore
  43. 2026-06-09 03:00 UTCOSV refresh
  44. 2026-06-08 14:16 UTCEPSS rescore
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  46. 2026-06-07 15:24 UTCEPSS rescore
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  48. 2026-06-06 13:46 UTCEPSS rescore
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  70. 2026-05-24 07:22 UTCEG score recompute
  71. 2026-05-24 07:22 UTCVendor advisory
  72. 2026-05-24 07:22 UTCGHSA enrichment

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

Frequently asked(5)

What is CVE-2023-52528?
CVE-2023-52528 is a medium vulnerability published on March 2, 2024. In the Linux kernel, the following vulnerability has been resolved: net: usb: smsc75xx: Fix uninit-value access in smsc75xxreadreg syzbot reported the following uninit-value access issue: ===================================================== BUG: KMSAN: uninit-value in smsc75xxwaitready…
When was CVE-2023-52528 disclosed?
CVE-2023-52528 was first published in the National Vulnerability Database on March 2, 2024, with the most recent update on December 11, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-52528 actively exploited?
CVE-2023-52528 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-52528?
CVE-2023-52528 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2023-52528?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-52528, 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.

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