How severe is CVE-2025-55848?

CVE-2025-55848 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-55848 being actively exploited?

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

What products are affected by CVE-2025-55848?

CVE-2025-55848 affects Dlink Dir-823x Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55848?

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-2025-55848 have an EU (EUVD) identifier?

Yes. CVE-2025-55848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31367.

When was CVE-2025-55848 published?

CVE-2025-55848 was published on 2025-09-26 and last updated on 2026-06-17.

CVE-2025-55848

CVE-2025-55848 is a high-severity vulnerability in Dlink Dir-823x 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-77.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31367
Weakness: CWE-77
Affected product: Dlink Dir-823x Firmware
Published: 2025-09-26
Last modified: 2026-06-17

Description

An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings interface, as the http_casswd parameter is not filtered by '&'to allow injection of reverse connection commands.

Frequently asked questions

What is CVE-2025-55848?: An issue was discovered in DIR-823 firmware 20250416. There is an RCE vulnerability in the set_cassword settings interface, as the http_casswd parameter is not filtered by '&'to allow injection of reverse connection commands.
How severe is CVE-2025-55848?: CVE-2025-55848 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-55848 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55848?: CVE-2025-55848 affects Dlink Dir-823x Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55848?: 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-2025-55848 have an EU (EUVD) identifier?: Yes. CVE-2025-55848 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31367.
When was CVE-2025-55848 published?: CVE-2025-55848 was published on 2025-09-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-823x_firmware:250416:*:*:*:*:*:*:*

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