CVE-2025-8978
Published: 14 August 2025
Summary
CVE-2025-8978 is a medium-severity Insufficient Verification of Data Authenticity (CWE-345) vulnerability in Dlink Dir-619L Firmware. Its CVSS base score is 6.6 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 33.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Directly requires independent verification of matching output before adverse decisions, mitigating insufficient authenticity checks on data from external sources.
Use of approved PKI certificates provides verifiable data authenticity and origin for communications and artifacts.
Mandates provision of authenticity and integrity artifacts that enable verification of name/address resolution data.
Requires explicit verification of data authenticity from authoritative sources, preventing acceptance of unauthenticated resolution responses.
Control requires verification of data authenticity/integrity (e.g., checksums) after aggregation/packing, directly reducing exploitation of insufficient verification before transmission.
Time synchronization supports reliable freshness verification when checking data authenticity across systems or components.
Mandates verification of data authenticity for software, firmware, and information.
Provenance documentation and monitoring directly enables verification of authenticity for components and data throughout their history.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability in the FirmwareUpgrade function allows remote authenticated attackers to bypass data authenticity checks and upload tampered firmware, enabling exploitation of a public-facing web application (T1190), denial of service via bad firmware (T1499.004), and persistent arbitrary code execution by modifying system firmware (T1542.001).
NVD Description
A vulnerability was determined in D-Link DIR-619L 6.02CN02. Affected is the function FirmwareUpgrade of the component boa. The manipulation leads to insufficient verification of data authenticity. It is possible to launch the attack remotely. The complexity of an attack is…
more
rather high. The exploitability is told to be difficult. 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.
Deeper analysisAI
CVE-2025-8978 is a vulnerability in the D-Link DIR-619L router running firmware version 6.02CN02, specifically affecting the FirmwareUpgrade function of the boa component. The issue stems from insufficient verification of data authenticity (CWE-345), which allows manipulation of firmware upgrade processes. Published on 2025-08-14, it carries a CVSS v3.1 base score of 6.6 (AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
The vulnerability enables remote exploitation by attackers who possess high privileges (PR:H), though the attack requires high complexity and is considered difficult to execute. Successful exploitation can result in high impacts to confidentiality, integrity, and availability, potentially allowing attackers to compromise the device's firmware integrity.
Advisories note that the vulnerability only affects products no longer supported by the maintainer, with no patches available from D-Link. Mitigation details are documented in VulDB entries (ctiid.319974, id.319974, submit.628599) and a GitHub repository detailing the DIR-619L firmware update issue. The exploit has been publicly disclosed and may be used.
Details
- CWE(s)