CVE-2026-46198

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

batman-adv: fix integer overflow on buff_pos

Fixing an integer overflow present in batadv_iv_ogm_send_to_if. The size check is done using the int type in batadv_iv_ogm_aggr_packet whereas the buff_pos variable uses the s16 type. This could lead to an out-of-bound read.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

May 28, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Jun 2, 2026
No patch confirmed yet.
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f61499359fa529f0d45a53bf7c573a49eb6322e6
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bf872db54f91ffe70104b98c20068b2d5910e018
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b252797bfced986d6d92ec2f4cfcca842ce8aa78
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/974542d1efc48b7e9fe16184e647615cba39969b
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/96c9c0ed9a9579a9085765aceaa4556a6666eb82
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/867cd090760e8f5cd206f387b47ff9c56fac04e9
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/10bb1f366d884d506c38a947b43026a75d1afe9a
generic

batman-adv: fix integer overflow on buff_pos - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0799e5943611006b346b8813c7daf7dd5aa26bfd

Vendor Advisories for CVE-2026-46198(2)

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

Patch Availability(31)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.186.196~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-14ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-14ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-14ubuntu
linuxKernel @ 5.10.258—osv

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 ... 6.12.90-1~bpo12+1 (23 versions)6.12.90-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (138 versions)7.0.9-1—

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 5× in last 7d / 32× 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 306 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-46198?
CVE-2026-46198 is a high vulnerability published on May 28, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix integer overflow on buff_pos Fixing an integer overflow present in batadvivogmsendto_if. The size check is done using the int type in batadvivogmaggrpacket whereas the buff_pos variable uses the s16 type. This could…
When was CVE-2026-46198 disclosed?
CVE-2026-46198 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46198 actively exploited?
CVE-2026-46198 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 79.1% of all scored CVEs.
What is the CVSS score of CVE-2026-46198?
CVE-2026-46198 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-46198?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46198, 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-2026-46198

Explore →

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