How severe is CVE-2008-1259?

CVE-2008-1259 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-1259 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-1259?

CVE-2008-1259 affects Zyxel P-2602hw-d1a. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-1259?

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

When was CVE-2008-1259 published?

CVE-2008-1259 was published on 2008-03-10 and last updated on 2026-06-16.

CVE-2008-1259

CVE-2008-1259 is a critical-severity vulnerability in Zyxel P-2602hw-d1a with a CVSS 2.0 base score of 9.3. 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-287.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Zyxel P-2602hw-d1a
Published: 2008-03-10
Last modified: 2026-06-16

Description

The Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a user who previously authenticated within the previous 5 minutes.

Frequently asked questions

What is CVE-2008-1259?: The Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware maintains authentication state by IP address, which allows remote attackers to bypass authentication by establishing a session from a source IP address of a user who previously authenticated within the previous 5 minutes.
How severe is CVE-2008-1259?: CVE-2008-1259 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2008-1259 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-1259?: CVE-2008-1259 affects Zyxel P-2602hw-d1a. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-1259?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2008-1259 published?: CVE-2008-1259 was published on 2008-03-10 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:zyxel:p-2602hw-d1a:*:*:3.40\(ajz.1\):*:*:*:*:*

More vulnerabilities in Zyxel P-2602hw-d1a

CVE-2008-1261 — Medium (CVSS 5.0): The Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware provides different responses to admin page requests depending…
CVE-2008-1260 — Medium (CVSS 4.3): Multiple cross-site request forgery (CSRF) vulnerabilities on the Zyxel P-2602HW-D1A router with 3.40(AJZ.1) firmware…

All CVEs affecting Zyxel P-2602hw-d1a →

Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
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