CVE-2024-56603

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

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

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-12-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
7.8EG
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: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

net: af_can: do not leave a dangling sk pointer in can_create()

On error can_create() frees the allocated sk object, but sock_init_data() has already attached it to the provided sock object. This will leave a dangling sk pointer in the sock object and may cause use-after-free later.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

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)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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
0.2%
EPSS %ILE
13th
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 (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-18). 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

December 27, 2024

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 5, 2026
Patch available.
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/811a7ca7320c062e15d0f5b171fe6ad8592d1434
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8df832e6b945e1ba61467d7f1c9305e314ae92fe
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/db207d19adbac96058685f6257720906ad41d215
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5947c9ac08f0771ea8ed64186b0d52e9029cb6c0
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1fe625f12d090d69f3f084990c7e4c1ff94bfe5f
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ce39b5576785bb3e66591145aad03d66bc3e778d
Web page

net: af_can: do not leave a dangling sk pointer in can_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/884ae8bcee749be43a071d6ed2d89058dbd2425c

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-realtime (5.15.0.1080.83) @ jammy2026-10-19ubuntu
ubuntulinux-tools-aws-edge (5.4.0.1142.152~18.04.1) @ bionic2026-10-19ubuntu
ubuntulinux-tools-aws-lts-20.04 (5.4.0.1142.139) @ focal2026-10-19ubuntu
ubuntulinux-tools-raspi (6.11.0-1010.10) @ oracular2026-10-19ubuntu
ubuntulinux-tools-iot (5.4.0.1048.46) @ focal2026-10-19ubuntu
ubuntulinux-tools-aws-fips (5.4.0.1142.89) @ focal2026-10-19ubuntu
ubuntulinux-tools-fips (5.4.0.1116.113) @ focal2026-10-19ubuntu
ubuntulinux-tools-ibm-edge (5.4.0.1090.95~18.04.1) @ bionic2026-10-19ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1077.83~20.04.1) @ focal2026-10-19ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1028.30~22.04.1) @ jammy2026-10-19ubuntu
ubuntulinux-tools-raspi-hwe-18.04-edge (5.4.0.1129.142~18.04.1) @ bionic2026-10-19ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1129.160) @ focal2026-10-19ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1081.90~20.04.1) @ focal2026-10-19ubuntu
ubuntulinux-tools-raspi-realtime (6.8.0-2023.24) @ noble2026-10-19ubuntu
ubuntulinux-tools-raspi (6.8.0-1028.32) @ noble2026-10-19ubuntu
ubuntulinux-tools-azure-nvidia (6.8.0-1014.15) @ noble2026-10-19ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-21.21) @ oracular2026-10-19ubuntu
ubuntulinux-virtual (6.8.0-58.60) @ noble2026-10-19ubuntu
ubuntulinux-tools-gcp-fips (5.4.0.1145.87) @ focal2026-10-19ubuntu
ubuntulinux-tools-nvidia-tegra-rt (5.15.0.1033.33) @ jammy2026-10-19ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.8.1-1020.21) @ noble2026-10-19ubuntu
ubuntulinux-tools-kvm (5.15.0.1076.72) @ jammy2026-10-19ubuntu
ubuntulinux-tools-gcp-fips (5.15.0.1079.69) @ jammy2026-10-19ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1060 (5.4.0-1060.64) @ focal2026-10-19ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.211.206) @ focal2026-10-19ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1086.95~20.04.1.61) @ focal2026-10-19ubuntu
redhatkernel-0:6.12.0-55.79.1.el10_02026-06-15redhat
redhatkernel-0:6.12.0-211.16.1.el10_22026-05-20redhat
redhatkernel-0:5.14.0-570.96.1.el9_62026-03-09redhat
redhatkernel-0:5.14.0-611.5.1.el9_72025-11-11redhat
linuxKernel @ 5.4.287 (fixes >=2.6.25)—osv

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 rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (44 versions)
  • every version up to 5.10.234-1: fixed in 5.10.234-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1, 6.1.119-1~deb11u1
  • every version up to 6.1.128-1~deb11u1: fixed in 6.1.128-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (32 versions)
  • every version up to 6.1.123-1: fixed in 6.1.123-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(20)

Data Freshness Timeline

(refreshed 11× in last 7d / 36× 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 93 of 203 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. 7 repeat rows among the latest 100 are merged into the row they repeat. The 110 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-10-19 15:23 UTCEG score recompute
  7. 2026-10-19 15:23 UTCVendor advisory
  8. 2026-10-19 15:22 UTCGHSA enrichmentGHSA-98rc-vgv3-572h · GitHub severity HIGH · GitHub CVSS 7.8
  9. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-18 05:58 UTCEG score recompute
  11. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-12 17:37 UTCEG score recompute
  17. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-11 21:03 UTCEG score recompute
  19. 2026-10-11 15:54 UTCEG score recompute
  20. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
Show 68 more
  1. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-02 16:25 UTCEG score recompute
  5. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-09-26 22:41 UTCOSV refresh
  10. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  13. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  14. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  15. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  16. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  26. 2026-09-07 08:18 UTCOSV refresh
  27. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  28. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  29. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  30. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  31. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  37. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  39. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  40. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-08-20 18:01 UTCOSV refresh
  42. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  43. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  46. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  47. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  48. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  49. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  52. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  53. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  54. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  55. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  56. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-08-05 11:48 UTCEG score recompute
  58. 2026-08-05 11:48 UTCVendor advisory
  59. 2026-08-05 11:48 UTCGHSA enrichmentGHSA-98rc-vgv3-572h · GitHub severity HIGH · GitHub CVSS 7.8
  60. 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  61. 2026-08-04 11:19 UTCEG score recompute
  62. 2026-08-04 11:19 UTCVendor advisory
  63. 2026-08-04 11:19 UTCGHSA enrichmentGHSA-98rc-vgv3-572h · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  66. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  67. 2026-07-31 07:42 UTCOSV refresh
  68. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.2% · 13th percentile

Frequently asked(5)

What is CVE-2024-56603?
CVE-2024-56603 is a high-severity vulnerability; its CVE record was published on December 27, 2024. In the Linux kernel, the following vulnerability has been resolved: net: afcan: do not leave a dangling sk pointer in cancreate() On error cancreate() frees the allocated sk object, but sockinit_data() has already attached it to the provided sock object. This will leave a dangling sk pointer in the…
When was the CVE record for CVE-2024-56603 published?
The CVE record for CVE-2024-56603 was published on December 27, 2024. 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 5, 2026; the record at its source may have been updated since.
Is CVE-2024-56603 actively exploited?
CVE-2024-56603 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-56603?
CVE-2024-56603 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-56603?
A fix for CVE-2024-56603 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-56603 are linked in the Vendor Advisories panel on this page.

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