How severe is CVE-2025-9377?

CVE-2025-9377 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-9377 being actively exploited?

Yes. CVE-2025-9377 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-09-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2025-9377?

CVE-2025-9377 primarily affects Tp-link Tl-wr841n Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-9377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2025-9377 have an EU (EUVD) identifier?

Yes. CVE-2025-9377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26234. It is also flagged as exploited in the EUVD (since 2025-09-03).

When was CVE-2025-9377 published?

CVE-2025-9377 was published on 2025-08-29 and last updated on 2026-06-17.

CVE-2025-9377

CVE-2025-9377 is a high-severity vulnerability in Tp-link Tl-wr841n Firmware with a CVSS 3.x base score of 7.2. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-09-03). The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v4: 8.6
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-09-03)
EU (EUVD) id: EUVD-2025-26234
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-09-03)
Weakness: CWE-78
Affected product: Tp-link Tl-wr841n Firmware
Published: 2025-08-29
Last modified: 2026-06-17

Description

The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9. This issue affects Archer C7(EU) V2: before 241108 and TL-WR841N/ND(MS) V9: before 241108. Both products have reached the status of EOL (end-of-life). It's recommending to purchase the new product to ensure better performance and security. If replacement is not an option in the short term, please use the second reference link to download and install the patch(es).

Frequently asked questions

What is CVE-2025-9377?: The authenticated remote command execution (RCE) vulnerability exists in the Parental Control page on TP-Link Archer C7(EU) V2 and TL-WR841N/ND(MS) V9. This issue affects Archer C7(EU) V2: before 241108 and TL-WR841N/ND(MS) V9: before 241108. Both products have reached the status of EOL (end-of-life). It's recommending to purchase the new product to ensure better performance and security. If replacement is not an option in the short term, please use the second reference link to download and install the patch(es).
How severe is CVE-2025-9377?: CVE-2025-9377 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-9377 being actively exploited?: Yes. CVE-2025-9377 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-09-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2025-9377?: CVE-2025-9377 primarily affects Tp-link Tl-wr841n Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-9377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2025-9377 have an EU (EUVD) identifier?: Yes. CVE-2025-9377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26234. It is also flagged as exploited in the EUVD (since 2025-09-03).
When was CVE-2025-9377 published?: CVE-2025-9377 was published on 2025-08-29 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wr841nd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_c7_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Tl-wr841n Firmware

CVE-2022-25073 — Critical (CVSS 9.8): TL-WR841Nv14_US_0.9.1_4.18 routers were discovered to contain a stack overflow in the function dm_fillObjByStr(). This…
CVE-2018-12575 — Critical (CVSS 9.8): On TP-Link TL-WR841N v13 00000001 0.9.1 4.16 v0001.0 Build 171019 Rel.55346n devices, all actions in the web interface…
CVE-2018-11714 — Critical (CVSS 9.8): An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13…
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