CVE-2026-72233

HIGHPre-NVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. A secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 8.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

batman-adv: bla: reacquire gw address after skb realloc

The pskb_may_pull() called by batadv_bla_is_backbone_gw() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
26th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-17). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 15, 2026

Last Modified

October 16, 2026

Advisory Details (8)

Auto-updated Aug 17, 2026
Patch available.
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f4fb97ecf677cd9c3aa4f3bfc6fbf5b0e4bdbbbf
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5e18886aadd3870e2d84e32a9678317fab1dd9e
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dc16bbf53cede1baf564bf0c8a861114b64e18b3
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cdf3b5af2bc4431e58629e8ad2086b1e9185c761
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ab2bac47a02637df1128a151e81d3ec14767f4bb
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a9ab19fbca86b32e9a9ae9e1a63e70a7eab3400f
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4a6673c55752a7aa41e28f51660eb981504ca088
Web page

batman-adv: bla: reacquire gw address after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/41819c5467b6eb8ab4567f0ac98702ce9b6abbb1

Vendor Advisories for CVE-2026-72233(1)

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

Patch Availability(15)

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)
  • every version up to 6.1.180-1: fixed in 6.1.180-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.96-1 (31 versions)
  • every version up to 6.12.100-1: fixed in 6.12.100-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

All Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 14× in last 7d / 78× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 221 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 121 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  2. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  3. 2026-10-18 03:16 UTCEG score recompute
  4. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-10-16 19:33 UTCEG score recompute
  6. 2026-10-16 19:33 UTCVendor advisory
  7. 2026-10-16 19:33 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  8. 2026-10-16 18:54 UTCEG score recompute
  9. 2026-10-16 18:54 UTCVendor advisory
  10. 2026-10-16 18:54 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  11. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  12. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  13. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  14. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-10-13 08:17 UTCEG score recompute
  16. 2026-10-13 08:17 UTCVendor advisory
  17. 2026-10-13 08:17 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-12 15:42 UTCEG score recompute
  20. 2026-10-11 19:27 UTCEG score recompute
  21. 2026-10-11 16:43 UTCEG score recompute
  22. 2026-10-11 14:03 UTCEG score recompute
  23. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
Show 75 more
  1. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  2. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  3. 2026-10-06 22:44 UTCEG score recompute
  4. 2026-10-06 22:44 UTCVendor advisory
  5. 2026-10-06 22:43 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  6. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  7. 2026-10-06 09:16 UTCEG score recompute
  8. 2026-10-06 09:16 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  9. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  10. 2026-10-05 12:39 UTCEG score recompute
  11. 2026-10-05 12:39 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-04 22:04 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-04 06:52 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  15. 2026-10-03 19:36 UTCEG score recompute
  16. 2026-10-03 19:36 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  17. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  18. 2026-10-02 18:29 UTCEG score recompute
  19. 2026-10-02 18:29 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-02 07:13 UTCEG score recompute
  21. 2026-10-02 07:13 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-01 08:29 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-09-30 21:11 UTCEG score recompute
  25. 2026-09-30 21:11 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  26. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  27. 2026-09-29 00:32 UTCEG score recompute
  28. 2026-09-29 00:32 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  29. 2026-09-28 10:24 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  30. 2026-09-27 23:08 UTCEG score recompute
  31. 2026-09-27 23:08 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  32. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  33. 2026-09-27 08:44 UTCEG score recompute
  34. 2026-09-27 08:44 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  36. 2026-09-25 02:47 UTCEG score recompute
  37. 2026-09-25 02:47 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  38. 2026-09-24 08:02 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  39. 2026-09-23 20:40 UTCEG score recompute
  40. 2026-09-23 20:40 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  41. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  42. 2026-09-23 08:07 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  43. 2026-09-22 20:51 UTCEG score recompute
  44. 2026-09-22 20:51 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  45. 2026-09-22 07:54 UTCEG score recompute
  46. 2026-09-22 07:54 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  48. 2026-09-21 20:39 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-09-21 09:15 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  50. 2026-09-20 21:35 UTCEG score recompute
  51. 2026-09-20 21:35 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  52. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  53. 2026-09-20 10:17 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  54. 2026-09-19 23:01 UTCEG score recompute
  55. 2026-09-19 23:01 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  56. 2026-09-19 11:07 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  57. 2026-09-18 22:56 UTCEG score recompute
  58. 2026-09-18 22:56 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  59. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  60. 2026-09-18 11:40 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  61. 2026-09-18 00:22 UTCEG score recompute
  62. 2026-09-18 00:22 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  63. 2026-09-17 11:16 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-09-16 23:40 UTCEG score recompute
  65. 2026-09-16 23:40 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  66. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  67. 2026-09-16 06:42 UTCEG score recompute
  68. 2026-09-16 06:42 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  70. 2026-09-15 19:26 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  71. 2026-09-15 07:53 UTCEG score recompute
  72. 2026-09-15 07:53 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  73. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  74. 2026-09-14 20:37 UTCGHSA enrichmentGHSA-37f7-6x64-w46m · GitHub severity HIGH · GitHub CVSS 8.8
  75. 2026-09-14 09:15 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-72233?
CVE-2026-72233 is a high-severity vulnerability; its CVE record was published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: bla: reacquire gw address after skb realloc The pskbmaypull() called by batadvblaisbackbonegw() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid…
When was the CVE record for CVE-2026-72233 published?
The CVE record for CVE-2026-72233 was published on August 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-72233 actively exploited?
CVE-2026-72233 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72233?
CVE-2026-72233 has a CVSS base score of 8.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72233?
A fix for CVE-2026-72233 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72233 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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