CVE-2025-38500

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-08-12. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

xfrm: interface: fix use-after-free after changing collect_md xfrm interface

collect_md property on xfrm interfaces can only be set on device creation, thus xfrmi_changelink() should fail when called on such interfaces.

The check to enforce this was done only in the case where the xi was returned from xfrmi_locate() which doesn't look for the collect_md interface, and thus the validation was never reached.

Calling changelink would thus errornously place the special interface xi in the xfrmi_net->xfrmi hash, but since it also exists in the xfrmi_net->collect_md_xfrmi pointer it would lead to a double free when the net namespace was taken down [1].

Change the check to use the xi from netdev_priv which is available earlier in the function to prevent changes in xfrm collect_md interfaces.

[1] resulting oops: [ 8.516540] kernel BUG at net/core/dev.c:12029! [ 8.516552] Oops: invalid opcode: 0000 [#1] SMP NOPTI [ 8.516559] CPU: 0 UID: 0 PID: 12 Comm: kworker/u80:0 Not tainted 6.15.0-virtme #5 PREEMPT(voluntary) [ 8.516565] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 8.516569] Workqueue: netns cleanup_net [ 8.516579] RIP: 0010:unregister_netdevice_many_notify+0x101/0xab0 [ 8.516590] Code: 90 0f 0b 90 48 8b b0 78 01 00 00 48 8b 90 80 01 00 00 48 89 56 08 48 89 32 4c 89 80 78 01 00 00 48 89 b8 80 01 00 00 eb ac 90 <0f> 0b 48 8b 45 00 4c 8d a0 88 fe ff ff 48 39 c5 74 5c 41 80 bc 24 [ 8.516593] RSP: 0018:ffffa93b8006bd30 EFLAGS: 00010206 [ 8.516598] RAX: ffff98fe4226e000 RBX: ffffa93b8006bd58 RCX: ffffa93b8006bc60 [ 8.516601] RDX: 0000000000000004 RSI: 0000000000000000 RDI: dead000000000122 [ 8.516603] RBP: ffffa93b8006bdd8 R08: dead000000000100 R09: ffff98fe4133c100 [ 8.516605] R10: 0000000000000000 R11: 00000000000003d2 R12: ffffa93b8006be00 [ 8.516608] R13: ffffffff96c1a510 R14: ffffffff96c1a510 R15: ffffa93b8006be00 [ 8.516615] FS: 0000000000000000(0000) GS:ffff98fee73b7000(0000) knlGS:0000000000000000 [ 8.516619] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.516622] CR2: 00007fcd2abd0700 CR3: 000000003aa40000 CR4: 0000000000752ef0 [ 8.516625] PKRU: 55555554 [ 8.516627] Call Trace: [ 8.516632] [ 8.516635] ? rtnl_is_locked+0x15/0x20 [ 8.516641] ? unregister_netdevice_queue+0x29/0xf0 [ 8.516650] ops_undo_list+0x1f2/0x220 [ 8.516659] cleanup_net+0x1ad/0x2e0 [ 8.516664] process_one_work+0x160/0x380 [ 8.516673] worker_thread+0x2aa/0x3c0 [ 8.516679] ? __pfx_worker_thread+0x10/0x10 [ 8.516686] kthread+0xfb/0x200 [ 8.516690] ? __pfx_kthread+0x10/0x10 [ 8.516693] ? __pfx_kthread+0x10/0x10 [ 8.516697] ret_from_fork+0x82/0xf0 [ 8.516705] ? __pfx_kthread+0x10/0x10 [ 8.516709] ret_from_fork_asm+0x1a/0x30 [ 8.516718]

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
4.7%
KEV
Not listed

Published

August 12, 2025

Last Modified

June 1, 2026

Advisory Details (5)

Auto-updated Jun 6, 2026
No patch confirmed yet.
generic

xfrm: interface: fix use-after-free after changing collect_md xfrm interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bfebdb85496e1da21d3cf05de099210915c3e706
generic

xfrm: interface: fix use-after-free after changing collect_md xfrm interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a90b2a1aaacbcf0f91d7e4868ad6c51c5dee814b
generic

xfrm: interface: fix use-after-free after changing collect_md xfrm interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a8d4748b954584ab7bd800f1a4e46d5b0eeb5ce4
generic

xfrm: interface: fix use-after-free after changing collect_md xfrm interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/69a31f7a6a81f5ffd3812c442e09ff0be22960f1
generic

xfrm: interface: fix use-after-free after changing collect_md xfrm interface - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5918c3f4800a3aef2173865e5903370f21e24f47

Vendor Advisories for CVE-2025-38500(1)

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

Patch Availability(20)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-realtime-hwe-24.04-edge (6.14.0-1013.13~24.04.1) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-6.14 (6.14.0-1013.13) @ plucky2026-05-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1035.36) @ noble2026-05-30ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1040.44) @ noble2026-05-30ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2031.32) @ noble2026-05-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-85.85~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-gcp-64k-6.14 (6.14.0-1017.18) @ plucky2026-05-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1037.38) @ noble2026-05-30ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1040.42~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1040.46) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-nvidia-lts-24.04 (6.8.0-1025.27) @ noble2026-05-30ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1040.46~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1037.38~22.04.1) @ jammy2026-05-30ubuntu
ubuntulinux-tools-oracle-64k-6.14 (6.14.0-1014.14) @ plucky2026-05-30ubuntu
ubuntulinux-tools-raspi-6.14 (6.14.0-1015.15) @ plucky2026-05-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-33.33) @ plucky2026-05-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-85.85) @ noble2026-05-30ubuntu
redhatkernel-0:5.14.0-427.92.1.el9_42025-10-02redhat
redhatkernel-0:6.12.0-55.33.1.el10_02025-09-15redhat
redhatkernel-0:5.14.0-570.39.1.el9_62025-09-02redhat

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

(20)

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 12× in last 7d / 46× 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 02:54 UTCEG score recompute
  2. 2026-07-22 14:07 UTCEPSS rescore
  3. 2026-07-22 14:07 UTCEPSS rescore
  4. 2026-07-21 15:24 UTCEPSS rescore
  5. 2026-07-20 17:07 UTCEPSS rescore
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  17. 2026-07-13 22:29 UTCEPSS rescore
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  19. 2026-07-13 06:12 UTCEPSS rescore
  20. 2026-07-12 05:46 UTCEPSS rescore
  21. 2026-07-11 08:27 UTCEPSS rescore
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  23. 2026-07-09 19:09 UTCEPSS rescore
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  25. 2026-07-07 13:45 UTCEPSS rescore
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  1. 2026-07-06 17:21 UTCOSV refresh
  2. 2026-07-05 02:30 UTCEPSS rescore
  3. 2026-07-04 06:30 UTCEPSS rescore
  4. 2026-07-01 15:06 UTCEPSS rescore
  5. 2026-07-01 15:06 UTCEPSS rescore
  6. 2026-06-30 23:22 UTCEPSS rescore
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  8. 2026-06-29 14:06 UTCEPSS rescore
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  10. 2026-06-28 14:07 UTCEPSS rescore
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  12. 2026-06-28 04:55 UTCEPSS rescore
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  14. 2026-06-27 03:08 UTCEPSS rescore
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  16. 2026-06-25 13:49 UTCEPSS rescore
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  18. 2026-06-24 14:04 UTCEPSS rescore
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  20. 2026-06-23 21:32 UTCEPSS rescore
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  22. 2026-06-22 14:25 UTCEPSS rescore
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  24. 2026-06-21 14:56 UTCEPSS rescore
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  26. 2026-06-21 01:59 UTCEPSS rescore
  27. 2026-06-21 01:59 UTCEPSS rescore
  28. 2026-06-19 19:25 UTCEPSS rescore
  29. 2026-06-19 19:25 UTCEPSS rescore
  30. 2026-06-18 05:35 UTCOSV refresh
  31. 2026-06-17 17:52 UTCEPSS rescore
  32. 2026-06-16 17:52 UTCEPSS rescore
  33. 2026-06-16 17:52 UTCEPSS rescore
  34. 2026-06-14 23:17 UTCEPSS rescore
  35. 2026-06-13 23:00 UTCEPSS rescore
  36. 2026-06-12 23:11 UTCEPSS rescore
  37. 2026-06-11 14:00 UTCEPSS rescore
  38. 2026-06-10 22:18 UTCEPSS rescore
  39. 2026-06-10 13:22 UTCEPSS rescore
  40. 2026-06-08 14:16 UTCEPSS rescore
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  42. 2026-06-07 15:24 UTCEPSS rescore
  43. 2026-06-06 13:47 UTCEPSS rescore
  44. 2026-06-06 13:47 UTCEPSS rescore
  45. 2026-06-05 22:46 UTCEPSS rescore
  46. 2026-06-05 22:46 UTCEPSS rescore
  47. 2026-06-05 06:10 UTCEPSS rescore
  48. 2026-06-05 06:10 UTCEPSS rescore
  49. 2026-06-04 13:12 UTCEPSS rescore
  50. 2026-06-04 13:12 UTCEPSS rescore
  51. 2026-06-02 20:12 UTCEPSS rescore
  52. 2026-06-01 13:51 UTCEPSS rescore
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  54. 2026-05-31 22:30 UTCEPSS rescore
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  56. 2026-05-31 00:16 UTCEPSS rescore
  57. 2026-05-30 00:37 UTCEG score recompute
  58. 2026-05-30 00:37 UTCVendor advisory
  59. 2026-05-30 00:37 UTCGHSA enrichment
  60. 2026-05-29 13:44 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-38500?
CVE-2025-38500 is a high vulnerability published on August 12, 2025. In the Linux kernel, the following vulnerability has been resolved: xfrm: interface: fix use-after-free after changing collect_md xfrm interface collect_md property on xfrm interfaces can only be set on device creation, thus xfrmi_changelink() should fail when called on such interfaces. The check…
When was CVE-2025-38500 disclosed?
CVE-2025-38500 was first published in the National Vulnerability Database on August 12, 2025, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-38500 actively exploited?
CVE-2025-38500 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 4.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-38500?
CVE-2025-38500 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-38500?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-38500, 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

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