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CVE-2023-53019— net: mdio: validate parameter addr in mdiobus_get_phy()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mdio未验证phy地址参数。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 7f854420fbfe9d49afe2ffb1df052cfe8e215541< 1d80c259dfbadefa61b7ea334dfce5cb57f8c72f affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< c431a3d642593bbdb99e8a9e3eed608b730db6f8 affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< 8a7b9560a3a8eb8724888c426e05926752f73aa0 affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< 4bc5f1f6bc94e695dfd912122af96e7115a0ddb8 affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< ad67de330d83e8078372b52af18ffe8d39e26c85 affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< 7879626296e6ffd838ae0f2af1ab49ee46354973 affected
7f854420fbfe9d49afe2ffb1df052cfe8e215541< 867dbe784c5010a466f00a7d1467c1c5ea569c75 affected
4.5 affected
… +8 more rows
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I. Basic Information for CVE-2023-53019

Vulnerability Information
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Vulnerability Title
net: mdio: validate parameter addr in mdiobus_get_phy()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: mdio: validate parameter addr in mdiobus_get_phy() The caller may pass any value as addr, what may result in an out-of-bounds access to array mdio_map. One existing case is stmmac_init_phy() that may pass -1 as addr. Therefore validate addr before using it.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mdio未验证phy地址参数。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 7f854420fbfe9d49afe2ffb1df052cfe8e215541 ~ 1d80c259dfbadefa61b7ea334dfce5cb57f8c72f -
Linux Linux 4.5 -

II. Public POCs for CVE-2023-53019

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III. Intelligence Information for CVE-2023-53019

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Patches & Fixes for CVE-2023-53019 (1)

Same Patch Batch · Linux · 2025-03-27 · 124 CVEs total

CVE-2023-53006 9.8 CRITICAL cifs: Fix oops due to uncleared server->smbd_conn in reconnect
CVE-2025-21876 8.8 HIGH iommu/vt-d: Fix suspicious RCU usage
CVE-2025-21890 8.2 HIGH idpf: fix checksums set in idpf_rx_rsc()
CVE-2023-52983 7.8 HIGH block, bfq: fix uaf for bfqq in bic_set_bfqq()
CVE-2023-52930 7.8 HIGH drm/i915: Fix potential bit_17 double-free
CVE-2023-52931 7.8 HIGH drm/i915: Avoid potential vm use-after-free
CVE-2023-52934 7.8 HIGH mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups
CVE-2023-52935 7.8 HIGH mm/khugepaged: fix ->anon_vma race
CVE-2025-21867 7.8 HIGH bpf, test_run: Fix use-after-free issue in eth_skb_pkt_type()
CVE-2022-49760 7.8 HIGH mm/hugetlb: fix PTE marker handling in hugetlb_change_protection()
CVE-2023-52973 7.8 HIGH vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF
CVE-2023-52974 7.8 HIGH scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress
CVE-2023-52975 7.8 HIGH scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress
CVE-2023-53009 7.8 HIGH drm/amdkfd: Add sync after creating vram bo
CVE-2023-53033 7.8 HIGH netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits
CVE-2023-53028 7.8 HIGH Revert "wifi: mac80211: fix memory leak in ieee80211_if_add()"
CVE-2023-53026 7.8 HIGH RDMA/core: Fix ib block iterator counter overflow
CVE-2023-53023 7.8 HIGH net: nfc: Fix use-after-free in local_cleanup()
CVE-2023-53021 7.8 HIGH net/sched: sch_taprio: fix possible use-after-free
CVE-2023-52988 7.8 HIGH ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path()

Showing top 20 of 124 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53019

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