CVE-2026-52919

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

batman-adv: fix tp_meter counter underflow during shutdown

batadv_tp_sender_shutdown() unconditionally decrements the "sending" atomic counter. If multiple paths (e.g. timeout, user cancel, and normal finish) call this function, the counter can underflow to -1.

Since the sender logic treats any non-zero value as "still sending", a negative value causes the sender kthread to loop indefinitely. This leads to a use-after-free when the interface is removed while the zombie thread is still active.

Fix this by using atomic_xchg() to ensure the counter only transitions from 1 to 0 once.

[sven: added missing change in batadv_tp_send]

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 24, 2026

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e75e2ab463b5b34df6b98f94d740aff327ce9f6b
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c66d20a3ff095e3f000551d208ec2606616db15c
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c1bac194733aabd731aafa6a01350c229e187dba
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/aeae11c5dad9cd0d50723890bdd866f8e6db2e7d
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/abae88fa254f2981d39ac003a7b302528a22af64
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/94f3b133168d1c49895e7cc6afbcf1cc0b354602
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/90ae3eae06b7b8ab9f6250b9497c860915b4c17b
generic

batman-adv: fix tp_meter counter underflow during shutdown - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/01cefc5923889e29dbb5f281c3d457714ceb9c00

Vendor Advisories for CVE-2026-52919(2)

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

Patch Availability(25)

Vendor / EcosystemFixed in / PatchReleasedSource
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-aws-edge (5.15.0.1112.119~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-18ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-18ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-18ubuntu
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-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-18ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-09-18ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-09-18ubuntu
ubuntulinux-virtual-6.8 (6.8.0-139.139) @ noble2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2053.55) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1067.75) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1067.75+fips1) @ noble2026-09-18ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1035.38) @ noble2026-09-18ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-18ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-18ubuntu

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 (141 versions)7.0.12-1—

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 13× in last 7d / 61× 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 305 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-52919?
CVE-2026-52919 is a high vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix tp_meter counter underflow during shutdown batadvtpsender_shutdown() unconditionally decrements the "sending" atomic counter. If multiple paths (e.g. timeout, user cancel, and normal finish) call this function, the…
When was CVE-2026-52919 disclosed?
CVE-2026-52919 was first published in the National Vulnerability Database on June 24, 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-2026-52919 actively exploited?
CVE-2026-52919 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 98.1% of all scored CVEs.
What is the CVSS score of CVE-2026-52919?
CVE-2026-52919 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-52919?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52919, 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-2026-52919

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