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
Trending — 4 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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)
EPSS
20.1%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 14, 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 89× 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 196 total refreshes for this CVE.

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

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 June 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46198 actively exploited?
CVE-2026-46198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

Explore the affected products and dependency analysis for CVE-2026-46198

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