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
6%
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-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-08-24ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-24ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-24ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-24ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-24ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-24ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-24ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-24ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-24ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-24ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-08-24ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-24ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-24ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-24ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-08-24ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-24ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-24ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-24ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-24ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-24ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-24ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-24ubuntu
ubuntulinux-tools-aws-edge (5.15.0.1112.119~20.04.1) @ focal2026-08-24ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-24ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-08-24ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-24ubuntu

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 (137 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 20× in last 7d / 103× 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 166 total refreshes for this CVE.

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

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 94.3% 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

Explore →

Is Your Infrastructure Affected by CVE-2026-52985?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs