CVE-2026-80601

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 2026-08-28. 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: 0.4%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: gw: acquire ethernet header only after skb realloc

The pskb_may_pull() called by batadv_get_vid() 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 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 (value × EchelonGraph’s weight)
Severity88% × 45%
The EG Score, 8.8 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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
0.4%
EPSS %ILE
32nd
KEV
Not listed

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 (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from 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's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” 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 28, 2026

Last Modified

August 29, 2026

Advisory Details (8)

Auto-updated Aug 29, 2026
Patch available.
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/77880a3be88d378d60cc1e8f8ec70430e2ed0518
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/916dac5f2944f63f07f7b501acbea6737dbbed0e
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6b43acd34b219b807e65096ce207b087942779d
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e3f4325e35dd6e76b80665f3510738ce34819753
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/afac8096bde4948e3caa7e4dd733867cfbd3018e
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b79884a5567bf788fb76c30832467cf6a56f3c0d
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c37f1166549c999ccd164b0cb6462d1ae68f8f6
Web page

batman-adv: gw: acquire ethernet header only after skb realloc - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2760b38222c8828b075802342fe3b91eb823d542

Vendor Advisories for CVE-2026-80601(1)

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

Patch Availability(11)

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

(11)

Data Freshness Timeline

(refreshed 24× in last 7d / 112× 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 179 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 79 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  2. 2026-10-13 06:28 UTCEG score recompute
  3. 2026-10-13 06:27 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  5. 2026-10-12 14:57 UTCEG score recompute
  6. 2026-10-11 19:21 UTCEG score recompute
  7. 2026-10-11 16:37 UTCEG score recompute
  8. 2026-10-11 13:55 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  11. 2026-10-10 14:04 UTCVendor advisory
  12. 2026-10-10 14:04 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  13. 2026-10-10 01:22 UTCEG score recompute
  14. 2026-10-10 01:22 UTCVendor advisory
  15. 2026-10-10 01:22 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-09 02:47 UTCEG score recompute
  18. 2026-10-09 02:47 UTCVendor advisory
  19. 2026-10-09 02:47 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-10-08 00:59 UTCEG score recompute
  22. 2026-10-08 00:59 UTCVendor advisory
  23. 2026-10-08 00:59 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-10-07 09:04 UTCVendor advisory
Show 75 more
  1. 2026-10-07 09:03 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  2. 2026-10-06 20:31 UTCEG score recompute
  3. 2026-10-06 20:31 UTCVendor advisory
  4. 2026-10-06 20:31 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  5. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  6. 2026-10-06 07:29 UTCEG score recompute
  7. 2026-10-06 07:29 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  8. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-05 17:03 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  10. 2026-10-05 04:33 UTCEG score recompute
  11. 2026-10-05 04:33 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-04 15:34 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-04 02:55 UTCEG score recompute
  15. 2026-10-04 02:55 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  16. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-10-03 14:24 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  18. 2026-10-02 21:59 UTCEG score recompute
  19. 2026-10-02 21:59 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  20. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  21. 2026-10-02 09:28 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  22. 2026-10-01 20:57 UTCEG score recompute
  23. 2026-10-01 20:57 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-10-01 08:24 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  26. 2026-09-30 19:51 UTCEG score recompute
  27. 2026-09-30 19:51 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  28. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  29. 2026-09-30 03:57 UTCEG score recompute
  30. 2026-09-30 03:57 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  31. 2026-09-29 09:55 UTCEG score recompute
  32. 2026-09-29 09:55 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  33. 2026-09-28 21:11 UTCEG score recompute
  34. 2026-09-28 21:11 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  35. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  36. 2026-09-28 05:12 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  37. 2026-09-27 16:42 UTCEG score recompute
  38. 2026-09-27 16:42 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  39. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  40. 2026-09-27 04:11 UTCEG score recompute
  41. 2026-09-27 04:11 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  42. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  43. 2026-09-26 15:39 UTCEG score recompute
  44. 2026-09-26 15:39 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  45. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  46. 2026-09-25 11:43 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  47. 2026-09-24 22:08 UTCEG score recompute
  48. 2026-09-24 22:08 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  49. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  50. 2026-09-24 08:23 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  51. 2026-09-23 19:52 UTCEG score recompute
  52. 2026-09-23 19:52 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  53. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-09-23 06:51 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  55. 2026-09-22 18:20 UTCEG score recompute
  56. 2026-09-22 18:20 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  57. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  58. 2026-09-22 04:18 UTCEG score recompute
  59. 2026-09-22 04:18 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  60. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-09-21 15:46 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  62. 2026-09-21 03:15 UTCEG score recompute
  63. 2026-09-21 03:15 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  64. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-09-20 14:43 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  66. 2026-09-20 02:06 UTCEG score recompute
  67. 2026-09-20 02:06 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  68. 2026-09-19 13:35 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  69. 2026-09-19 01:04 UTCEG score recompute
  70. 2026-09-19 01:04 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  71. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  72. 2026-09-18 12:32 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  73. 2026-09-18 00:01 UTCEG score recompute
  74. 2026-09-18 00:01 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8
  75. 2026-09-17 10:17 UTCGHSA enrichmentGHSA-xq44-q9x4-cxw9 · GitHub severity HIGH · GitHub CVSS 8.8

Frequently asked(5)

What is CVE-2026-80601?
CVE-2026-80601 is a high-severity vulnerability; its CVE record was published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskbmaypull() called by batadvgetvid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an…
When was the CVE record for CVE-2026-80601 published?
The CVE record for CVE-2026-80601 was published on August 28, 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 August 29, 2026; the record at its source may have been updated since.
Is CVE-2026-80601 actively exploited?
CVE-2026-80601 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-80601?
CVE-2026-80601 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-2026-80601?
A fix for CVE-2026-80601 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80601 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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