No exploitation reportedFix available

CVE-2023-43121

Q: Is CVE-2023-43121 actively exploited?

Active exploitation of CVE-2023-43121 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-43121?

CVE-2023-43121 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

No exploitation reported by the sources we read.

Published2023-10-16
Fixed in32.5.1.5 · 31.7.2 · 22.7
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A Directory Traversal vulnerability discovered in Chalet application in Extreme Networks Switch Engine (EXOS) before 32.5.1.5, before 22.7, and before 31.7.2 allows attackers to read arbitrary files.

Timeline

dates in UTC

2023-10-1620:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-43121?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-43121?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Extremenetworks exos

Branch	Affected	Fixed in	Source
32.x	≥ 32.0, < 32.5.1.5	32.5.1.5	NVD
31.7	≥ 31.7.0, < 31.7.2	31.7.2	NVD
22.7	< 22.7	22.7	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Extremenetworks exos to 32.5.1.5 · 31.7.2 · 22.7

Advisories and patches

extreme-networks.my.site.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-09-17
OpenCVESSVC decisionnone—
NVDCVSS 3.17.5read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: 2023-10-16
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-43121?

A Directory Traversal vulnerability discovered in Chalet application in Extreme Networks Switch Engine (EXOS) before 32.5.1.5, before 22.7, and before 31.7.2 allows attackers to read arbitrary files.

Is CVE-2023-43121 actively exploited?

Active exploitation of CVE-2023-43121 has not been confirmed. Its EPSS score was 1.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-43121?

CVE-2023-43121 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

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