How severe is CVE-2023-23040?

CVE-2023-23040 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 high, integrity none, and availability none.

Is CVE-2023-23040 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23040?

CVE-2023-23040 affects Tp-link Tl-wr940n Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23040?

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-2023-23040 published?

CVE-2023-23040 was published on 2023-02-22 and last updated on 2026-06-17.

CVE-2023-23040

CVE-2023-23040 is a high-severity vulnerability in Tp-link Tl-wr940n Firmware with a CVSS 3.x 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-327.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-327
Affected product: Tp-link Tl-wr940n Firmware
Published: 2023-02-22
Last modified: 2026-06-17

Description

TP-Link router TL-WR940N V6 3.19.1 Build 180119 uses a deprecated MD5 algorithm to hash the admin password used for basic authentication.

Frequently asked questions

What is CVE-2023-23040?: TP-Link router TL-WR940N V6 3.19.1 Build 180119 uses a deprecated MD5 algorithm to hash the admin password used for basic authentication.
How severe is CVE-2023-23040?: CVE-2023-23040 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 high, integrity none, and availability none.
Is CVE-2023-23040 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23040?: CVE-2023-23040 affects Tp-link Tl-wr940n Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23040?: 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-2023-23040 published?: CVE-2023-23040 was published on 2023-02-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:tl-wr940n_firmware:6_3.19.1:180119:*:*:*:*:*:*

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CVE-2022-24355 — High (CVSS 8.8): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link…
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