How severe is CVE-2025-4343?

CVE-2025-4343 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-4343 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4343?

CVE-2025-4343 affects Dlink Dir-600l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4343?

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.

Does CVE-2025-4343 have an EU (EUVD) identifier?

Yes. CVE-2025-4343 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13494.

When was CVE-2025-4343 published?

CVE-2025-4343 was published on 2025-05-06 and last updated on 2026-06-17.

CVE-2025-4343

CVE-2025-4343 is a high-severity vulnerability in Dlink Dir-600l Firmware with a CVSS 3.x base score of 8.8. 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-120.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13494
Weakness: CWE-120
Affected product: Dlink Dir-600l Firmware
Published: 2025-05-06
Last modified: 2026-06-17

Description

A vulnerability has been found in D-Link DIR-600L up to 2.07B01 and classified as critical. This vulnerability affects the function formEasySetupWizard. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2025-4343?: A vulnerability has been found in D-Link DIR-600L up to 2.07B01 and classified as critical. This vulnerability affects the function formEasySetupWizard. The manipulation of the argument host leads to buffer overflow. The attack can be initiated remotely. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2025-4343?: CVE-2025-4343 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-4343 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4343?: CVE-2025-4343 affects Dlink Dir-600l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4343?: 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.
Does CVE-2025-4343 have an EU (EUVD) identifier?: Yes. CVE-2025-4343 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13494.
When was CVE-2025-4343 published?: CVE-2025-4343 was published on 2025-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-600l_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-600l Firmware

CVE-2026-42375 — Critical (CVSS 9.8): D-Link DIR-600L Hardware Revision A1 (End-of-Life) contains a hardcoded telnet backdoor. The device starts a telnet…
CVE-2026-42374 — Critical (CVSS 9.8): D-Link DIR-600L Hardware Revision B1 (End-of-Life) contains a hardcoded telnet backdoor. The device starts a telnet…
CVE-2025-60554 — Critical (CVSS 9.8): D-Link DIR600L Ax FW116WWb01 was discovered to contain a buffer overflow via the curTime parameter in the function…
CVE-2025-60553 — Critical (CVSS 9.8): D-Link DIR600L Ax FW116WWb01 was discovered to contain a buffer overflow via the curTime parameter in the function…
CVE-2025-60548 — Critical (CVSS 9.8): D-Link DIR600L Ax FW116WWb01 was discovered to contain a buffer overflow via the curTime parameter in the function…
CVE-2014-8361 — Critical (CVSS 9.8): The miniigd SOAP service in Realtek SDK allows remote attackers to execute arbitrary code via a crafted…

All CVEs affecting Dlink Dir-600l Firmware →

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →