How severe is CVE-2014-6435?

CVE-2014-6435 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2014-6435 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-6435?

CVE-2014-6435 primarily affects Aztech Adsl Dsl5018en (1t1r) Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-6435?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-6435 published?

CVE-2014-6435 was published on 2018-01-12 and last updated on 2026-06-17.

CVE-2014-6435

CVE-2014-6435 is a high-severity vulnerability in Aztech Adsl Dsl5018en (1t1r) Firmware with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Aztech Adsl Dsl5018en (1t1r) Firmware
Published: 2018-01-12
Last modified: 2026-06-17

Description

cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.

Frequently asked questions

What is CVE-2014-6435?: cgi-bin/AZ_Retrain.cgi in Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices does not check for authentication, which allows remote attackers to cause a denial of service (WAN connectivity reset) via a direct request.
How severe is CVE-2014-6435?: CVE-2014-6435 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2014-6435 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-6435?: CVE-2014-6435 primarily affects Aztech Adsl Dsl5018en (1t1r) Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-6435?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-6435 published?: CVE-2014-6435 was published on 2018-01-12 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:aztech:adsl_dsl5018en_\(1t1r\)_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:aztech:dsl705e_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:aztech:dsl705eu_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Aztech Adsl Dsl5018en (1t1r) Firmware

CVE-2014-6437 — Critical (CVSS 9.8): Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices allow remote attackers to obtain sensitive device…
CVE-2014-6436 — Critical (CVSS 9.8): Aztech ADSL DSL5018EN (1T1R), DSL705E, and DSL705EU devices improperly manage sessions, which allows remote attackers…

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

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