How severe is CVE-2013-5122?

CVE-2013-5122 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2013-5122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-5122?

CVE-2013-5122 primarily affects Cisco Linksys Ea2700 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-5122?

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-2013-5122 published?

CVE-2013-5122 was published on 2020-01-07 and last updated on 2026-06-16.

CVE-2013-5122

CVE-2013-5122 is a critical-severity vulnerability in Cisco Linksys Ea2700 Firmware with a CVSS 3.x base score of 9.8. 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 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Cisco Linksys Ea2700 Firmware
Published: 2020-01-07
Last modified: 2026-06-16

Description

Cisco Linksys Routers EA2700, EA3500, E4200, EA4500: A bug can cause an unsafe TCP port to open which leads to unauthenticated access

Frequently asked questions

What is CVE-2013-5122?: Cisco Linksys Routers EA2700, EA3500, E4200, EA4500: A bug can cause an unsafe TCP port to open which leads to unauthenticated access
How severe is CVE-2013-5122?: CVE-2013-5122 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2013-5122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-5122?: CVE-2013-5122 primarily affects Cisco Linksys Ea2700 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-5122?: 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-2013-5122 published?: CVE-2013-5122 was published on 2020-01-07 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:cisco:linksys_ea2700_firmware:1.0.14:*:*:*:*:*:*:*
cpe:2.3:o:cisco:linksys_ea3500_firmware:1.0.30:*:*:*:*:*:*:*
cpe:2.3:o:cisco:linksys_e4200_firmware:2.0.36:*:*:*:*:*:*:*
cpe:2.3:o:cisco:linksys_ea4500_firmware:2.0.36:*:*:*:*:*:*:*

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