CVE-2023-1670

HIGHNVD 7.87.8—

7.8

EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.

High severity, but no confirmed exploitation yet

CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw use after free in the Linux kernel Xircom 16-bit PCMCIA (PC-card) Ethernet driver was found.A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 19.6%
KEV: Not listed

Published

March 30, 2023

Last Modified

February 14, 2025

References (8)

secalert@redhathttps://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
secalert@redhathttps://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
secalert@redhathttps://lore.kernel.org/all/20230316161526.1568982-1-zyytlz.wz%40163.com/
secalert@redhathttps://security.netapp.com/advisory/ntap-20230526-0010/
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
af854a3a-2127-422b-91ae-364da2661108https://lore.kernel.org/all/20230316161526.1568982-1-zyytlz.wz%40163.com/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230526-0010/

Patch Availability(15)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-tools-oem-22.04c (6.1.0.1009.9) @ jammy	2026-05-25	ubuntu
ubuntu	linux-headers-4.4.0-240-generic (4.4.0-240.274) @ xenial	2026-05-25	ubuntu
ubuntu	linux-oem-22.04a (5.17.0.1032.30) @ jammy	2026-05-25	ubuntu
ubuntu	linux-modules-iwlwifi-oem-22.04b (6.0.0.1017.17) @ jammy	2026-05-25	ubuntu
ubuntu	linux-image-lowlatency (5.19.0.1027.23) @ kinetic	2026-05-25	ubuntu
ubuntu	linux-image-unsigned-5.15.0-1022-gkeop (5.15.0-1022.27) @ jammy	2026-05-25	ubuntu
ubuntu	linux-cloud-tools-6.2.0-23 (6.2.0-23.23) @ lunar	2026-05-25	ubuntu
ubuntu	linux-modules-5.4.0-1065-bluefield (5.4.0-1065.71) @ focal	2026-05-25	ubuntu
ubuntu	linux-buildinfo-6.2.0-1007-gcp (6.2.0-1007.7) @ lunar	2026-05-25	ubuntu
ubuntu	linux-ibm-cloud-tools-common (5.19.0-1024.26) @ kinetic	2026-05-25	ubuntu
ubuntu	linux-intel-iotg-cloud-tools-5.15.0-1033 (5.15.0-1033.38) @ jammy	2026-05-25	ubuntu
ubuntu	linux-headers-5.4.0-1024-xilinx-zynqmp (5.4.0-1024.28) @ focal	2026-05-25	ubuntu
ubuntu	linux-headers-azure-fde (5.15.0.1041.48.19) @ jammy	2026-05-25	ubuntu
ubuntu	linux-tools-azure (4.15.0.1168.134) @ trusty	2026-05-25	ubuntu
ubuntu	linux-tools-iot (5.4.0.1017.15) @ focal	2026-05-25	ubuntu

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.

CWE-416Use After Free

All Vendor Advisories

(16)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 56× 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.

2026-06-27 03:07 UTCEPSS rescore
2026-06-25 13:48 UTCEPSS rescore
2026-06-25 13:48 UTCEPSS rescore
2026-06-24 14:03 UTCEPSS rescore
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2026-06-23 21:31 UTCEPSS rescore
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2026-06-22 14:24 UTCEPSS rescore
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2026-06-21 14:55 UTCEPSS rescore
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2026-06-21 01:58 UTCEPSS rescore
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2026-06-19 19:24 UTCEPSS rescore
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2026-06-18 17:51 UTCEPSS rescore
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2026-06-17 17:51 UTCEPSS rescore
2026-06-17 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-16 17:51 UTCEPSS rescore
2026-06-15 17:47 UTCEPSS rescore
2026-06-14 23:16 UTCEPSS rescore
2026-06-13 22:59 UTCEPSS rescore

Show 42 more

2026-06-12 23:10 UTCEPSS rescore
2026-06-11 13:59 UTCEPSS rescore
2026-06-11 13:58 UTCEPSS rescore
2026-06-10 22:17 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore
2026-06-10 13:21 UTCEPSS rescore
2026-06-10 12:17 UTCOSV refresh
2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-02 20:12 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-29 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-27 13:39 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 13:43 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore
2026-05-25 04:02 UTCEG score recompute
2026-05-25 04:02 UTCVendor advisory
2026-05-25 04:02 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-1670?

CVE-2023-1670 is a high vulnerability published on March 30, 2023. A flaw use after free in the Linux kernel Xircom 16-bit PCMCIA (PC-card) Ethernet driver was found.A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

When was CVE-2023-1670 disclosed?

CVE-2023-1670 was first published in the National Vulnerability Database on March 30, 2023, with the most recent update on February 14, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-1670 actively exploited?

CVE-2023-1670 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-1670?

CVE-2023-1670 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2023-1670?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-1670, 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.

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CVE-2023-1670

Published

Last Modified

References (8)

Patch Availability(15)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1670?

Same vendor

Same CWE

CVE-2023-1670

📅 Published

🔄 Last Modified

🔗 References (8)

Patch Availability(15)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-1670?

🔗 Related CVEs(same vendor + same CWE)

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Published

Last Modified

References (8)

Frequently asked(5)

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