CVE-2026-52985

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
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

A fix is available — apply it.

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

netdevsim: zero initialize struct iphdr in dummy sk_buff

Syzbot reports a KMSAN uninit-value originating from nsim_dev_trap_skb_build, with the allocation also being performed in the same function.

Fix this by calling skb_put_zero instead of skb_put to guarantee zero initialization of the whole IP header.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 24, 2026

Last Modified

July 14, 2026

Advisory Details (8)

Auto-updated Jul 19, 2026
No patch confirmed yet.
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bc6002865e8c4fcf9e94975f7cf023448d8764e2
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/978ca6ff789f1f19c03288ac20cc1f4774e88490
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/818f7673ed7f4a29d4b9cee8184c47d6e57162b4
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/750d0091bebf44975421268d37484ef87060d263
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e2cfd0904976e701d7a76b86b694e72af230ab0
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/35eaa6d8d6c2ee65e96f507add856e0eacf24591
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1b7b6ae0e93b8d512e208b1378d74af052e4f4e7
generic

netdevsim: zero initialize struct iphdr in dummy sk_buff - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/175556c049eaec14efde8c6475e763b7579b9de7

Vendor Advisories for CVE-2026-52985(2)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-18ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-18ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1059.62~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-18ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1107.113~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-18ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-18ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-18ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-18ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-18ubuntu

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.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (140 versions)7.0.10-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(24)

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 10× in last 7d / 47× 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 197 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-52985?
CVE-2026-52985 is a medium vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: netdevsim: zero initialize struct iphdr in dummy sk_buff Syzbot reports a KMSAN uninit-value originating from nsimdevtrapskbbuild, with the allocation also being performed in the same function. Fix this by calling skbputzero…
When was CVE-2026-52985 disclosed?
CVE-2026-52985 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52985 actively exploited?
CVE-2026-52985 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 97.6% of all scored CVEs.
What is the CVSS score of CVE-2026-52985?
CVE-2026-52985 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-52985?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52985, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-52985

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