CVE-2023-4464: A vulnerability, which was classified as critical, has been found in Poly Trio 8300, Trio 8500, Trio 8800, Tri

This month

HIGH 7.2MITIGATEMITIGATEMITIGATE

CVE-2023-4464 is a high-severity flaw (CVSS 7.2) affecting ccx 400 firmware, ccx 600 firmware, trio 8800 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, has been found in Poly Trio 8300, Trio 8500, Trio 8800, Trio C60, CCX 350, CCX 400, CCX 500, CCX 505, CCX 600, CCX 700, EDGE E100, EDGE E220, EDGE E300, EDGE E320, EDGE E350, EDGE E400, EDGE E450, EDGE E500, EDGE E550, VVX 101, VVX 150, VVX 201, VVX 250, VVX 300, VVX 301, VVX 310, VVX 311, VVX 350, VVX 400, VVX 401, VVX 410, VVX 411, VVX 450, VVX 500, VVX 501, VVX 600 and VVX 601. This issue affe

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	3.3% (top 11%)
CISA exploited list	No
Weakness	CWE-78
Published	2023-12-29
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: poly

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-12-29 10:15 UTCPublished CVE record published
2026-06-17 06:37 UTCUpdated Record last modified

poly ccx 400 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

poly ccx 600 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

poly trio 8800 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

poly trio c60 firmware MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-4464?

ccx 400 firmware: mitigate or apply the listed mitigation; ccx 600 firmware: mitigate or apply the listed mitigation; trio 8800 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-4464 being exploited?

CVE-2023-4464 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-4464 affect?

CVE-2023-4464 affects ccx 400 firmware, ccx 600 firmware, trio 8800 firmware. Severity is high (CVSS 7.2). A vulnerability, which was classified as critical, has been found in Poly Trio 8300, Trio 8500, Trio 8800, Trio C60, CCX 350, CCX 400, CCX 500, CCX 505, CCX 600, CCX 700, EDGE E100, EDGE E220, EDGE E300, EDGE E320, EDGE E350, EDGE E400, EDG

How urgent is CVE-2023-4464?

Priority 47/100. High severity

Related CVEs

CVE-2023-4466 LOW 2.7 MITIGATE MITIGATE A vulnerability has been found in Poly CCX 400, CCX 600, Trio 8800 and Trio C60 and classified as problematic
CVE-2023-4465 LOW 2.7 MITIGATE MITIGATE A vulnerability, which was classified as problematic, was found in Poly Trio 8300, Trio 8500, Trio 8800, Trio
CVE-2023-4463 MEDIUM 5.3 MITIGATE MITIGATE A vulnerability classified as problematic was found in Poly CCX 400, CCX 600, Trio 8800 and Trio C60
CVE-2023-4462 LOW 3.7 MITIGATE MITIGATE A vulnerability classified as problematic has been found in Poly Trio 8300, Trio 8500, Trio 8800, Trio C60, CC

References

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