How severe is CVE-2025-15543?

CVE-2025-15543 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-15543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15543?

CVE-2025-15543 affects Tp-link Vx800v Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15543?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-15543 have an EU (EUVD) identifier?

Yes. CVE-2025-15543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206534.

When was CVE-2025-15543 published?

CVE-2025-15543 was published on 2026-01-29 and last updated on 2026-06-17.

CVE-2025-15543

CVE-2025-15543 is a medium-severity vulnerability in Tp-link Vx800v Firmware with a CVSS 3.x base score of 4.6. 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-59.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v4: 5.1
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-206534
Weakness: CWE-59
Affected product: Tp-link Vx800v Firmware
Published: 2026-01-29
Last modified: 2026-06-17

Description

Improper link resolution in USB HTTP access path in VX800v v1.0 allows a crafted USB device to expose root filesystem contents, giving an attacker with physical access read‑only access to system files.

Frequently asked questions

What is CVE-2025-15543?: Improper link resolution in USB HTTP access path in VX800v v1.0 allows a crafted USB device to expose root filesystem contents, giving an attacker with physical access read‑only access to system files.
How severe is CVE-2025-15543?: CVE-2025-15543 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-15543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15543?: CVE-2025-15543 affects Tp-link Vx800v Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-15543 have an EU (EUVD) identifier?: Yes. CVE-2025-15543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-206534.
When was CVE-2025-15543 published?: CVE-2025-15543 was published on 2026-01-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:vx800v_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Vx800v Firmware

CVE-2025-13399 — High (CVSS 8.8): A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute…
CVE-2025-15548 — Medium (CVSS 6.5): Some VX800v v1.0 web interface endpoints transmit sensitive information over unencrypted HTTP due to missing…
CVE-2025-15541 — Medium (CVSS 6.3): Improper link resolution in the VX800v v1.0 SFTP service allows authenticated adjacent attackers to use crafted…
CVE-2025-15542 — Medium (CVSS 5.3): Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device…

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