How severe is CVE-2017-11519?

CVE-2017-11519 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-2017-11519 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11519?

CVE-2017-11519 affects Tp-link Archer C9 (2.0) Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11519?

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-2017-11519 published?

CVE-2017-11519 was published on 2017-07-21 and last updated on 2026-06-17.

CVE-2017-11519

CVE-2017-11519 is a critical-severity vulnerability in Tp-link Archer C9 (2.0) 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-335.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-335
Affected product: Tp-link Archer C9 (2.0) Firmware
Published: 2017-07-21
Last modified: 2026-06-17

Description

passwd_recovery.lua on the TP-Link Archer C9(UN)_V2_160517 allows an attacker to reset the admin password by leveraging a predictable random number generator seed. This is fixed in C9(UN)_V2_170511.

Frequently asked questions

What is CVE-2017-11519?: passwd_recovery.lua on the TP-Link Archer C9(UN)_V2_160517 allows an attacker to reset the admin password by leveraging a predictable random number generator seed. This is fixed in C9(UN)_V2_170511.
How severe is CVE-2017-11519?: CVE-2017-11519 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-2017-11519 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11519?: CVE-2017-11519 affects Tp-link Archer C9 (2.0) Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11519?: 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-2017-11519 published?: CVE-2017-11519 was published on 2017-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:archer_c9_\(2.0\)_firmware:160517:*:*:*:*:*:*:*

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