CVE-2025-66315: There is a configuration defect vulnerability in the version server of ZTE MF258K Pro products

Routine

MEDIUM 4.3MITIGATE

CVE-2025-66315 is a medium-severity flaw (CVSS 4.3) affecting mf258k pro firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

There is a configuration defect vulnerability in the version server of ZTE MF258K Pro products. Due to improper directory permission settings, an attacker can execute write permissions in a specific directory.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-269, CWE-863
Published	2026-01-09
Last modified	2026-06-17

Publisher (CNA): ZTE Corporation · Vendor: zte

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

Am I affected?

Timeline

2026-01-09 03:15 UTCPublished CVE record published
2026-06-17 09:56 UTCUpdated Record last modified

zte mf258k pro firmware MITIGATE

Affected: zte_mf258kpro_play_v1.0.0b03 · zte_mf258pro_std_v1.0.0b04

Fixed in: no fixed release known

Safe to downgrade to: a release before zte_mf258kpro_play_v1.0.0b03

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-2025-66315?

mf258k pro firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-66315 being exploited?

CVE-2025-66315 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-2025-66315 affect?

CVE-2025-66315 affects mf258k pro firmware. Severity is medium (CVSS 4.3). There is a configuration defect vulnerability in the version server of ZTE MF258K Pro products. Due to improper directory permission settings, an attacker can execute write permissions in a specific directory.

How urgent is CVE-2025-66315?

Priority 19/100. No elevated risk signals yet.

Software pages

ZTE vulnerabilities

Related CVEs

CVE-2024-22065 MEDIUM 6.8 MITIGATE There is a command injection vulnerability in ZTE MF258 Pro product

References

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