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CVE-2022-50001— netfilter: nft_tproxy: restrict to prerouting hook

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nft_tproxy未限制在预路由钩子中使用，可能导致空指针取消引用。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.19% · P9

Possible ATT&CK Techniques 1 AI

T1564 · Hide Artifacts

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 4ed8eb6570a49931c705512060acd50058d61616< 0b21edf4cc13516716848e0a4fdf726aa2a62cd9 affected
4ed8eb6570a49931c705512060acd50058d61616< 83ef55c4281f1b4c6bd4457c2e96ccd1c9e80200 affected
4ed8eb6570a49931c705512060acd50058d61616< eaba3f9b672c3a3f820da8ee9584b9520674eafa affected
4ed8eb6570a49931c705512060acd50058d61616< 9a1d92cbeac3335fee99fa865b8c5b0f2e71a8f7 affected
4ed8eb6570a49931c705512060acd50058d61616< 343fed6b0daeb528ae5c9d4d84d9ff763ac95619 affected
4ed8eb6570a49931c705512060acd50058d61616< 18bbc3213383a82b05383827f4b1b882e3f0a5a5 affected
4.19 affected
< 4.19 unaffected
… +6 more rows
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I. Basic Information for CVE-2022-50001

Vulnerability Information
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Vulnerability Title
netfilter: nft_tproxy: restrict to prerouting hook
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_tproxy: restrict to prerouting hook TPROXY is only allowed from prerouting, but nft_tproxy doesn't check this. This fixes a crash (null dereference) when using tproxy from e.g. output.
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nft_tproxy未限制在预路由钩子中使用，可能导致空指针取消引用。
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 4ed8eb6570a49931c705512060acd50058d61616 ~ 0b21edf4cc13516716848e0a4fdf726aa2a62cd9 -
Linux Linux 4.19 -

II. Public POCs for CVE-2022-50001

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III. Intelligence Information for CVE-2022-50001

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2022-49968 8.0 HIGH ieee802154/adf7242: defer destroy_workqueue call
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-49950 7.8 HIGH misc: fastrpc: fix memory corruption on open
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38079 7.8 HIGH crypto: algif_hash - fix double free in hash_accept
CVE-2025-38060 7.8 HIGH bpf: copy_verifier_state() should copy 'loop_entry' field
CVE-2025-38062 7.8 HIGH genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie
CVE-2022-50101 7.8 HIGH video: fbdev: vt8623fb: Check the size of screen before memset_io()

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50001

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