How severe is CVE-2006-2562?

CVE-2006-2562 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2006-2562 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-2562?

CVE-2006-2562 affects Zyxel P-335wt Router. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-2562?

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-2006-2562 published?

CVE-2006-2562 was published on 2006-05-24 and last updated on 2026-06-16.

CVE-2006-2562

CVE-2006-2562 is a high-severity vulnerability in Zyxel P-335wt Router with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Zyxel P-335wt Router
Published: 2006-05-24
Last modified: 2026-06-16

Description

ZyXEL P-335WT router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.

Frequently asked questions

What is CVE-2006-2562?: ZyXEL P-335WT router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.
How severe is CVE-2006-2562?: CVE-2006-2562 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-2562 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-2562?: CVE-2006-2562 affects Zyxel P-335wt Router. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-2562?: 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-2006-2562 published?: CVE-2006-2562 was published on 2006-05-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:zyxel:p-335wt_router:*:*:*:*:*:*:*:*

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