How severe is CVE-2025-8231?

CVE-2025-8231 has a CVSS 3.x base score of 6.8, 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 high, and availability high.

Is CVE-2025-8231 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-8231?

CVE-2025-8231 affects Dlink Dir-890l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-8231?

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

Does CVE-2025-8231 have an EU (EUVD) identifier?

Yes. CVE-2025-8231 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22822.

When was CVE-2025-8231 published?

CVE-2025-8231 was published on 2025-07-27 and last updated on 2026-06-17.

CVE-2025-8231

CVE-2025-8231 is a medium-severity vulnerability in Dlink Dir-890l Firmware with a CVSS 3.x base score of 6.8. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
CVSS v2: 7.2
CVSS v4: 5.2
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-22822
Weakness: CWE-798
Affected product: Dlink Dir-890l Firmware
Published: 2025-07-27
Last modified: 2026-06-17

Description

A vulnerability, which was classified as critical, has been found in D-Link DIR-890L up to 111b04. This issue affects some unknown processing of the file rgbin of the component UART Port. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the physical device. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Frequently asked questions

What is CVE-2025-8231?: A vulnerability, which was classified as critical, has been found in D-Link DIR-890L up to 111b04. This issue affects some unknown processing of the file rgbin of the component UART Port. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the physical device. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
How severe is CVE-2025-8231?: CVE-2025-8231 has a CVSS 3.x base score of 6.8, 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 high, and availability high.
Is CVE-2025-8231 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-8231?: CVE-2025-8231 affects Dlink Dir-890l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-8231?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-8231 have an EU (EUVD) identifier?: Yes. CVE-2025-8231 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-22822.
When was CVE-2025-8231 published?: CVE-2025-8231 was published on 2025-07-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dir-890l_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Dlink Dir-890l Firmware

CVE-2022-30521 — Critical (CVSS 9.8): The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router…
CVE-2019-17621 — Critical (CVSS 9.8): The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated…
CVE-2017-14948 — Critical (CVSS 9.8): Certain D-Link products are affected by: Buffer Overflow. This affects DIR-880L 1.08B04 and DIR-895 L/R 1.13b03. The…
CVE-2016-6563 — Critical (CVSS 9.8): Processing malformed SOAP messages when performing the HNAP Login action causes a buffer overflow in the stack in some…
CVE-2022-29778 — High (CVSS 8.8): D-Link DIR-890L 1.20b01 allows attackers to execute arbitrary code due to the hardcoded option Wake-On-Lan for the…
CVE-2023-30063 — High (CVSS 7.5): D-Link DIR-890L FW1.10 A1 is vulnerable to Authentication bypass.

All CVEs affecting Dlink Dir-890l Firmware →

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

CVE-2026-18452 — Critical (CVSS 10.0): DMS+ (Non-Mobile) developed by Rich Source has a Use of Hard-coded Credentials vulnerability. Unauthenticated remote…
CVE-2026-45336 — Critical (CVSS 10.0): HireFlow is a web-based interview management system for managing candidates, scheduling interviews, and tracking hiring…
CVE-2026-13768 — Critical (CVSS 10.0): Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub…
CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →