CVE-2014-8357

Q: How do I fix CVE-2014-8357?

Upgrade znid 2426a firmware to s3.0.501 or later.

Q: Is CVE-2014-8357 being actively exploited?

Not that we know of. CVE-2014-8357 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.

Q: How severe is CVE-2014-8357?

CVE-2014-8357 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2014-8357 affect?

Published advisories record a fix for znid 2426a firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 90th pctl

8.8

CVSS v3

NVD

Description

backupsettings.html in the web administrative portal in Zhone zNID GPON 2426A before S3.0.501 places a session key in a URL, which allows remote attackers to obtain arbitrary user passwords via the sessionKey parameter in a getConfig action to backupsettings.conf.

CWE-255

How to fix

Remediation Available

znid 2426a firmwareNVD

Affected:< s3.0.501Fixed in:s3.0.501CVE-2014-8357derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

4.05%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Exploit3

Other references1

securityfocus.com

Related Vulnerabilities

Other CWE-255 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2010-0219	High	10.0	90%	-	-
CVE-2014-9195	High	10.0	81%	-	-
CVE-2009-3548	High	7.5	79%	-	-
CVE-2009-4189	High	10.0	79%	-	-
CVE-2013-4786	High	7.5	75%	-	-
CVE-2009-4188	High	10.0	69%	-	-

Common questions

How do I fix CVE-2014-8357?

Upgrade znid 2426a firmware to s3.0.501 or later.

Is CVE-2014-8357 being actively exploited?

Not that we know of. CVE-2014-8357 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.

How severe is CVE-2014-8357?

CVE-2014-8357 has a CVSS v3 base score of 8.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2014-8357 affect?

Published advisories record a fix for znid 2426a firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.