CVE-2023-1829

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2023-07-06. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root. We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
—
EPSS
60.3%
KEV
Not listed

Published

April 12, 2023

Last Modified

February 13, 2025

References (10)

Vendor Advisories for CVE-2023-1829(6)

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

Patch Availability(26)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-headers-bluefield (5.4.0.1062.57) @ focal2026-05-25ubuntu
ubuntulinux-image-gcp-edge (5.15.0.1033.41~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-tools-intel-iotg (5.15.0.1030.29) @ jammy2026-05-25ubuntu
ubuntulinux-image-5.15.0-1030-intel-iotg (5.15.0-1030.35~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-headers-5.4.0-1024-xilinx-zynqmp (5.4.0-1024.28) @ focal2026-05-25ubuntu
ubuntulinux-tools-iot (5.4.0.1017.15) @ focal2026-05-25ubuntu
ubuntulinux-tools-oem-22.04c (6.1.0.1009.9) @ jammy2026-05-25ubuntu
ubuntulinux-image-lowlatency (5.19.0.1023.19) @ kinetic2026-05-25ubuntu
ubuntulinux-azure-headers-5.15.0-1037 (5.15.0-1037.44) @ jammy2026-05-25ubuntu
ubuntulinux-headers-4.4.0-240-generic (4.4.0-240.274) @ xenial2026-05-25ubuntu
ubuntulinux-image-lowlatency (4.15.0.210.193) @ bionic2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1032-kvm (5.15.0-1032.37) @ jammy2026-05-25ubuntu
ubuntulinux-image-ibm-edge (5.4.0.1048.59) @ bionic2026-05-25ubuntu
ubuntulinux-image-aws-hwe (4.15.0.1155.138) @ xenial2026-05-25ubuntu
ubuntulinux-image-raspi2-hwe-18.04 (5.4.0.1084.114) @ focal2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1028-raspi-nolpae (5.15.0-1028.30) @ jammy2026-05-25ubuntu
ubuntulinux-oem-22.04a (5.17.0.1031.29) @ jammy2026-05-25ubuntu
redhatkpatch-patch2023-11-21redhat
redhatkernel-0:4.18.0-193.119.1.el8_22023-11-21redhat
redhatkernel-rt-0:4.18.0-193.119.1.rt13.170.el8_22023-11-21redhat
redhatkernel-0:4.18.0-305.103.1.el8_42023-09-05redhat
redhatkernel-rt-0:4.18.0-305.103.1.rt7.178.el8_42023-09-05redhat
redhatkernel-0:4.18.0-372.70.1.el8_62023-08-29redhat
redhatkernel-0:4.18.0-477.21.1.el8_82023-08-08redhat
redhatkernel-0:4.18.0-147.87.1.el8_12023-08-08redhat
redhatkernel-rt-0:4.18.0-477.21.1.rt7.284.el8_82023-08-08redhat

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.

Weakness Classification(1)

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

Additional Vendor Advisories

(19)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 46× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 107 total refreshes for this CVE.

  1. 2026-07-22 23:05 UTCEG score recompute
  2. 2026-07-22 14:06 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
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  46. 2026-06-10 10:47 UTCOSV refresh
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Frequently asked(5)

What is CVE-2023-1829?
CVE-2023-1829 is a high vulnerability published on April 12, 2023. A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can…
When was CVE-2023-1829 disclosed?
CVE-2023-1829 was first published in the National Vulnerability Database on April 12, 2023, with the most recent update on February 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-1829 actively exploited?
CVE-2023-1829 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-1829?
CVE-2023-1829 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2023-1829?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1829, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2023-1829

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