CVE-2024-42154

CRITICALNVD 4.49.8
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2024-07-30. NVD baseline CVSS 4.4; sources differ by 5.4.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

tcp_metrics: validate source addr length

I don't see anything checking that TCP_METRICS_ATTR_SADDR_IPV4 is at least 4 bytes long, and the policy doesn't have an entry for this attribute at all (neither does it for IPv6 but v6 is manually validated).

CVSS v3
4.4
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.3%
EPSS %ILE
16th
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-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 2026-10-23). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 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 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

July 30, 2024

Last Modified

October 15, 2026

Advisory Details (10)

Auto-updated Oct 14, 2026
Patch available.
Web page

oss-security - Re: CVE-2024-42154: Linux kernel: tcp_metrics: validate source addr length

http://www.openwall.com/lists/oss-security/2024/09/24/4
Web page

oss-security - CVE-2024-42154: Linux kernel: tcp_metrics: validate source addr length

http://www.openwall.com/lists/oss-security/2024/09/24/3
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ef7c428b425beeb52b894e16f1c4b629d6cebfb6
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cdffc358717e436bb67122bb82c1a2a26e050f98
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c2debdd170e395934ac0e039748576dfde14e99
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/66be40e622e177316ae81717aa30057ba9e61dff
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3d550dd5418729a6e77fe7721d27adea7152e321
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/31f03bb04146c1c6df6c03e9f45401f5f5a985d3
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2a2e79dbe2236a1289412d2044994f7ab419b44c
Web page

tcp_metrics: validate source addr length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/19d997b59fa1fd7a02e770ee0881c0652b9c32c9

Patch Availability(29)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1051 (5.4.0-1051.55) @ focal2026-10-23ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1116.146) @ focal2026-10-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-45.45~22.04.1) @ jammy2026-10-23ubuntu
ubuntulinux-tools-azure (4.15.0-1181.196~14.04.1) @ trusty2026-10-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1035.39) @ jammy2026-10-23ubuntu
ubuntulinux-tools-raspi (6.8.0-1012.13) @ noble2026-10-23ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1072.81~20.04.1.49) @ focal2026-10-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1067.73~20.04.1) @ focal2026-10-23ubuntu
ubuntulinux-tools-azure (6.8.0-1015.17) @ noble2026-10-23ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.229.241~16.04.1) @ xenial2026-10-23ubuntu
ubuntulinux-tools-gkeop-6.8 (6.8.0-1002.4) @ noble2026-10-23ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.259.293~14.04.1) @ trusty2026-10-23ubuntu
ubuntulinux-tools-raspi-hwe-18.04-edge (5.4.0.1116.128~18.04.1) @ bionic2026-10-23ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.195.193) @ focal2026-10-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1013.13~22.04.1) @ jammy2026-10-23ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.195.215~18.04.1) @ bionic2026-10-23ubuntu
ubuntulinux-tools-iot (5.4.0.1043.41) @ focal2026-10-23ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.121.121) @ jammy2026-10-23ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1072.70) @ jammy2026-10-23ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.8.0-45.45) @ noble2026-10-23ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (5.15.0.121.131~20.04.1) @ focal2026-10-23ubuntu
redhatkernel-rt-0:5.14.0-284.95.1.rt14.380.el9_22024-12-04redhat
redhatkernel-0:5.14.0-284.95.1.el9_22024-12-04redhat
redhatkernel-0:5.14.0-427.47.1.el9_42024-12-04redhat
redhatkernel-0:5.14.0-503.11.1.el9_52024-11-12redhat
redhatkernel-rt-0:4.18.0-553.22.1.rt7.363.el8_102024-09-24redhat
redhatkernel-0:4.18.0-553.22.1.el8_102024-09-24redhat
redhatkernel-0:4.18.0-477.74.1.el8_82024-09-24redhat
linuxKernel @ 4.19.318 (fixes >=3.14.0)—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 (42 versions)
  • every version up to 5.10.223-1: fixed in 5.10.223-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1
  • every version up to 6.1.119-1~deb11u1: fixed in 6.1.119-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.27-1 ... 6.1.94-1~bpo11+1 (24 versions)
  • every version up to 6.1.98-1: fixed in 6.1.98-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.9.9-1: fixed in 6.9.9-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.9.9-1: fixed in 6.9.9-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(17)

Data Freshness Timeline

(refreshed 31× in last 7d / 72× 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 96 of 235 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. 4 repeat rows among the latest 100 are merged into the row they repeat. The 139 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 19:10 UTCEG score recompute
  2. 2026-10-23 19:10 UTCVendor advisory
  3. 2026-10-23 19:10 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  5. 2026-10-22 20:37 UTCEG score recompute
  6. 2026-10-22 20:37 UTCVendor advisory
  7. 2026-10-22 20:37 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  8. 2026-10-21 22:01 UTCEG score recompute
  9. 2026-10-21 22:01 UTCVendor advisory
  10. 2026-10-21 22:01 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  12. 2026-10-20 23:28 UTCEG score recompute
  13. 2026-10-20 23:28 UTCVendor advisory
  14. 2026-10-20 23:28 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  15. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  16. 2026-10-20 00:56 UTCEG score recompute
  17. 2026-10-20 00:56 UTCVendor advisory
  18. 2026-10-20 00:56 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  19. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  20. 2026-10-18 23:53 UTCEG score recompute
  21. 2026-10-18 23:53 UTCVendor advisory
  22. 2026-10-18 23:52 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  23. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-10-18 07:05 UTCEG score recompute
  25. 2026-10-18 01:21 UTCEG score recompute
Show 71 more
  1. 2026-10-18 01:21 UTCVendor advisory
  2. 2026-10-18 01:21 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  4. 2026-10-17 02:47 UTCEG score recompute
  5. 2026-10-17 02:47 UTCVendor advisory
  6. 2026-10-17 02:47 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  7. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  8. 2026-10-16 04:14 UTCEG score recompute
  9. 2026-10-16 04:14 UTCVendor advisory
  10. 2026-10-16 04:13 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  12. 2026-10-15 01:27 UTCVendor advisory
  13. 2026-10-15 01:27 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  14. 2026-10-15 01:07 UTCEG score recompute
  15. 2026-10-15 01:07 UTCVendor advisory
  16. 2026-10-15 01:07 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  18. 2026-10-14 12:40 UTCEG score recompute
  19. 2026-10-14 12:40 UTCVendor advisory
  20. 2026-10-14 12:39 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  21. 2026-10-13 16:30 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  22. 2026-10-13 12:33 UTCVendor advisory
  23. 2026-10-13 12:32 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-10-12 17:47 UTCEG score recompute
  25. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  26. 2026-10-12 13:50 UTCVendor advisory
  27. 2026-10-12 13:50 UTCGHSA enrichmentGHSA-q75j-p4r8-37x7 · GitHub severity CRITICAL · GitHub CVSS 9.8
  28. 2026-10-11 21:13 UTCEG score recompute
  29. 2026-10-11 16:05 UTCEG score recompute
  30. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  31. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  32. 2026-10-10 04:03 UTCOSV refresh
  33. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  34. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  35. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  36. 2026-10-06 15:15 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  37. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  38. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  39. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  40. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  41. 2026-09-30 19:51 UTCEG score recompute
  42. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  43. 2026-09-29 15:17 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  44. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  45. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  46. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  47. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  48. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  49. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  50. 2026-09-21 20:32 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  51. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-09-20 13:44 UTCOSV refresh
  53. 2026-09-19 15:40 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  54. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  55. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  56. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  57. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  58. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  59. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  60. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  61. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  62. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  63. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  64. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  65. 2026-09-05 15:27 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  66. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  67. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  68. 2026-09-01 14:47 UTCOSV refresh
  69. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  70. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  71. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.3% · 17th percentile

Frequently asked(5)

What is CVE-2024-42154?
CVE-2024-42154 is a critical-severity vulnerability; its CVE record was published on July 30, 2024. In the Linux kernel, the following vulnerability has been resolved: tcp_metrics: validate source addr length I don't see anything checking that TCPMETRICSATTRSADDRIPV4 is at least 4 bytes long, and the policy doesn't have an entry for this attribute at all (neither does it for IPv6 but v6 is…
When was the CVE record for CVE-2024-42154 published?
The CVE record for CVE-2024-42154 was published on July 30, 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 October 15, 2026; the record at its source may have been updated since.
Is CVE-2024-42154 actively exploited?
CVE-2024-42154 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-42154?
CVE-2024-42154 has a CVSS v3 base score of 4.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8 (CRITICAL).
How do I remediate CVE-2024-42154?
A fix for CVE-2024-42154 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-42154 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-42154

Explore →

Is Your Infrastructure Affected by CVE-2024-42154?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.