CVE-2026-80707

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. A secondary CVSS source baseline 7.5; 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

Also known asEUVD-2026-67442 (ENISA EUVD) · GHSA-7qjr-5mr5-8m2q (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer

Zero the allocated buffer in j1939_session_fresh_new() to ensure it contains no residual data.

While there is a potential performance impact if users allocate maximum sized ETP buffers, most real-world use cases are not noticeably affected since the maximum known buffer size is typically around 65K.

[mkl: add Message-ID]

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 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.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 at low or medium mission impact and sooner than that at high.
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 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 2026-10-30). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 28, 2026

Last Modified

October 16, 2026

Advisory Details (8)

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

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751
Web page

can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832

Vendor Advisories for CVE-2026-80707(2)

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

Patch Availability(5)

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

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (56 versions)
  • every version up to 6.1.187-1: fixed in 6.1.187-1
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1
  • every version up to 6.12.107-1~deb12u1: fixed in 6.12.107-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (33 versions)
  • every version up to 6.12.105-1: fixed in 6.12.105-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (165 versions)
  • every version up to 7.1.8-1: fixed in 7.1.8-1
—

Additional Vendor Advisories

(5)

Data Freshness Timeline

(refreshed 11× in last 7d / 90× 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 258 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 158 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 21:14 UTCEG score recompute
  2. 2026-10-30 21:14 UTCVendor advisory
  3. 2026-10-30 21:14 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  7. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  8. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  9. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  10. 2026-10-25 13:59 UTCEG score recompute
  11. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  12. 2026-10-23 20:54 UTCEG score recompute
  13. 2026-10-23 20:54 UTCVendor advisory
  14. 2026-10-23 20:54 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  15. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  16. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  21. 2026-10-18 03:10 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  23. 2026-10-16 20:31 UTCEG score recompute
  24. 2026-10-16 20:31 UTCVendor advisory
  25. 2026-10-16 20:31 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
Show 75 more
  1. 2026-10-16 19:36 UTCEG score recompute
  2. 2026-10-16 19:36 UTCVendor advisory
  3. 2026-10-16 19:36 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  4. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  5. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  6. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  7. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  8. 2026-10-13 06:26 UTCEG score recompute
  9. 2026-10-13 06:26 UTCVendor advisory
  10. 2026-10-13 06:26 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-10-12 14:57 UTCEG score recompute
  13. 2026-10-11 19:21 UTCEG score recompute
  14. 2026-10-11 16:37 UTCEG score recompute
  15. 2026-10-11 13:55 UTCEG score recompute
  16. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-10-10 13:19 UTCVendor advisory
  19. 2026-10-10 13:19 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-10 01:08 UTCEG score recompute
  21. 2026-10-10 01:08 UTCVendor advisory
  22. 2026-10-10 01:08 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  24. 2026-10-09 02:44 UTCEG score recompute
  25. 2026-10-09 02:44 UTCVendor advisory
  26. 2026-10-09 02:44 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  27. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  28. 2026-10-08 00:56 UTCEG score recompute
  29. 2026-10-08 00:56 UTCVendor advisory
  30. 2026-10-08 00:56 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  31. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  32. 2026-10-07 07:51 UTCVendor advisory
  33. 2026-10-07 07:51 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-10-06 19:40 UTCEG score recompute
  35. 2026-10-06 19:40 UTCVendor advisory
  36. 2026-10-06 19:40 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  37. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  38. 2026-10-06 07:28 UTCEG score recompute
  39. 2026-10-06 07:28 UTCVendor advisory
  40. 2026-10-06 07:28 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  42. 2026-10-05 16:50 UTCVendor advisory
  43. 2026-10-05 16:50 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-10-05 03:41 UTCEG score recompute
  45. 2026-10-05 03:41 UTCVendor advisory
  46. 2026-10-05 03:41 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  47. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  48. 2026-10-04 14:42 UTCVendor advisory
  49. 2026-10-04 14:42 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-10-04 02:31 UTCEG score recompute
  51. 2026-10-04 02:31 UTCVendor advisory
  52. 2026-10-04 02:31 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  53. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  54. 2026-10-03 14:20 UTCVendor advisory
  55. 2026-10-03 14:20 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-10-02 20:57 UTCEG score recompute
  57. 2026-10-02 20:57 UTCVendor advisory
  58. 2026-10-02 20:57 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  60. 2026-10-02 08:23 UTCVendor advisory
  61. 2026-10-02 08:23 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  62. 2026-10-01 20:13 UTCEG score recompute
  63. 2026-10-01 20:13 UTCVendor advisory
  64. 2026-10-01 20:13 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  66. 2026-10-01 08:02 UTCVendor advisory
  67. 2026-10-01 08:01 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  68. 2026-09-30 19:50 UTCEG score recompute
  69. 2026-09-30 19:50 UTCVendor advisory
  70. 2026-09-30 19:50 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  72. 2026-09-30 03:53 UTCEG score recompute
  73. 2026-09-30 03:53 UTCVendor advisory
  74. 2026-09-30 03:53 UTCGHSA enrichmentGHSA-7qjr-5mr5-8m2q · GitHub severity HIGH · GitHub CVSS 7.5
  75. 2026-09-29 11:11 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-80707?
CVE-2026-80707 is a high-severity vulnerability; its CVE record was published on August 28, 2026. In the Linux kernel, the following vulnerability has been resolved: can: j1939: transport: j1939sessionfresh_new(): initialize receive buffer Zero the allocated buffer in j1939sessionfresh_new() to ensure it contains no residual data. While there is a potential performance impact if users allocate…
When was the CVE record for CVE-2026-80707 published?
The CVE record for CVE-2026-80707 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 October 16, 2026; the record at its source may have been updated since.
Is CVE-2026-80707 actively exploited?
CVE-2026-80707 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-2026-80707?
CVE-2026-80707 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-80707?
A fix for CVE-2026-80707 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-80707 are linked in the Vendor Advisories panel on this page.

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