CVE-2026-52922

HIGHPre-NVD 7.57.5
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: 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: dat: handle forward allocation error

batadv_dat_forward_data() calls pskb_copy_for_clone() to duplicate an skb for each DHT candidate, but does not check the return value before passing it to batadv_send_skb_prepare_unicast_4addr(). That function dereferences the skb unconditionally, so a failed allocation triggers a NULL pointer dereference.

Skip forwarding to the current DHT candidate on allocation failure.

CVSS v3
7.5
EG Score
7.5(high)
EPSS
31.4%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 28, 2026

Advisory Details (8)

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

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf48e75fc4fe0d5cc7721c82d454221d01367b93
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ce0c381199402a2c58f4599f4f6ed100d872d0da
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9cceea8eeba710def2a5707ee00f00c74a9a1cac
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9bcebaedfb8479cb4affb23c7a0d000ca9a20e73
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/866ac1d57040ed0b44ca732e3c66b3aa6b93011c
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4d420d9ee70a220a2cd95aa0dd2e15acad66a505
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2edb8aeb3cdda9d00ec4997252dc5bcd6f54d8ef
generic

batman-adv: dat: handle forward allocation error - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2d8826a2d3657cea66fb0370f9e521575a673871

Vendor Advisories for CVE-2026-52922(2)

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

Data Freshness Timeline

(refreshed 53× in last 7d / 66× 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.

  1. 2026-07-07 05:39 UTCEG score recompute
  2. 2026-07-07 05:39 UTCVendor advisory
  3. 2026-07-07 05:39 UTCGHSA enrichment
  4. 2026-07-06 18:41 UTCEG score recompute
  5. 2026-07-06 18:41 UTCVendor advisory
  6. 2026-07-06 18:41 UTCGHSA enrichment
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 06:48 UTCEG score recompute
  10. 2026-07-06 06:48 UTCVendor advisory
  11. 2026-07-06 06:48 UTCGHSA enrichment
  12. 2026-07-06 02:23 UTCEPSS rescore
  13. 2026-07-06 02:23 UTCEPSS rescore
  14. 2026-07-05 19:51 UTCEG score recompute
  15. 2026-07-05 19:51 UTCVendor advisory
  16. 2026-07-05 19:51 UTCGHSA enrichment
  17. 2026-07-05 08:53 UTCEG score recompute
  18. 2026-07-05 08:53 UTCVendor advisory
  19. 2026-07-05 08:53 UTCGHSA enrichment
  20. 2026-07-05 02:30 UTCEPSS rescore
  21. 2026-07-04 21:57 UTCEG score recompute
  22. 2026-07-04 21:57 UTCVendor advisory
  23. 2026-07-04 21:57 UTCGHSA enrichment
  24. 2026-07-04 10:59 UTCEG score recompute
  25. 2026-07-04 10:59 UTCVendor advisory
Show 41 more
  1. 2026-07-04 10:59 UTCGHSA enrichment
  2. 2026-07-04 06:31 UTCEPSS rescore
  3. 2026-07-04 00:02 UTCEG score recompute
  4. 2026-07-04 00:02 UTCVendor advisory
  5. 2026-07-04 00:02 UTCGHSA enrichment
  6. 2026-07-03 13:04 UTCEG score recompute
  7. 2026-07-03 13:04 UTCVendor advisory
  8. 2026-07-03 13:04 UTCGHSA enrichment
  9. 2026-07-03 02:08 UTCEG score recompute
  10. 2026-07-03 02:08 UTCVendor advisory
  11. 2026-07-03 02:07 UTCGHSA enrichment
  12. 2026-07-02 15:11 UTCEG score recompute
  13. 2026-07-02 15:11 UTCVendor advisory
  14. 2026-07-02 15:11 UTCGHSA enrichment
  15. 2026-07-02 04:09 UTCEG score recompute
  16. 2026-07-02 04:09 UTCVendor advisory
  17. 2026-07-02 04:09 UTCGHSA enrichment
  18. 2026-07-01 17:13 UTCEG score recompute
  19. 2026-07-01 17:13 UTCVendor advisory
  20. 2026-07-01 17:13 UTCGHSA enrichment
  21. 2026-07-01 15:07 UTCEPSS rescore
  22. 2026-07-01 06:13 UTCEG score recompute
  23. 2026-07-01 06:13 UTCVendor advisory
  24. 2026-07-01 06:13 UTCGHSA enrichment
  25. 2026-06-30 23:22 UTCEPSS rescore
  26. 2026-06-30 19:16 UTCEG score recompute 7.50
  27. 2026-06-30 19:16 UTCVendor advisory
  28. 2026-06-30 19:16 UTCGHSA enrichment
  29. 2026-06-29 14:06 UTCEPSS rescore
  30. 2026-06-29 14:06 UTCEPSS rescore
  31. 2026-06-28 14:07 UTCEPSS rescore
  32. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  33. 2026-06-28 04:56 UTCEPSS rescore
  34. 2026-06-28 04:56 UTCEPSS rescore
  35. 2026-06-27 13:59 UTCEG score recompute
  36. 2026-06-27 13:59 UTCGHSA enrichment
  37. 2026-06-27 03:08 UTCEPSS rescore
  38. 2026-06-25 13:49 UTCEPSS rescore
  39. 2026-06-24 14:05 UTCEPSS rescore
  40. 2026-06-24 08:42 UTCEG score recompute
  41. 2026-06-24 08:40 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-52922?
CVE-2026-52922 is a high vulnerability published on June 24, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: dat: handle forward allocation error batadvdatforwarddata() calls pskbcopyforclone() to duplicate an skb for each DHT candidate, but does not check the return value before passing it to…
When was CVE-2026-52922 disclosed?
CVE-2026-52922 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52922 actively exploited?
CVE-2026-52922 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-52922?
CVE-2026-52922 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-52922?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52922, 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

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