Security readout for executives and security teams
Plain-English summary
This flaw affects D-Link DIR-878A1 firmware handling of USB storage metadata. A malicious or controlled USB device with an oversized serial number could overflow router memory and potentially run code. The main limiter is access: the attacker needs physical access or control of a USB device connected to the router.
Executive priority
Treat this as a moderate priority operational risk. It is not described as remotely exploitable, but compromise could be serious where routers are physically accessible. Prioritize exposed branch, retail, public, and unmanaged locations first.
Technical view
CVE-2025-60674 is a CWE-121 stack buffer overflow in FW101B04.bin, in the rc binary USB storage handling module. Sources describe fgets reading up to 127 bytes and sscanf copying the USB Serial Number into a 64-byte stack buffer. CVSS v3.1 is 6.8 with physical attack vector and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to environments using D-Link DIR-878A1 routers with the referenced firmware and USB storage functionality accessible. Risk is higher where routers are in shared, branch, retail, lab, or unattended locations where untrusted people can connect USB devices.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. Public researcher details exist, but the described attack requires physical access or attacker control over a connected USB device. No remote network exploitation is supported by the provided evidence.
Researcher notes
The strongest evidence is the CVE description and linked researcher report. Affected CPE data is incomplete in the bundle, and no vendor-specific fixed version is identified. Validate exposure through firmware inventory and D-Link advisory checks before asserting remediation completeness.
Mitigation direction
- Check D-Link security guidance for fixed firmware or product advisories.
- Restrict physical access to affected routers and USB ports.
- Disable USB storage features if supported and operationally acceptable.
- Remove untrusted USB devices from router environments.
- Replace or retire affected routers if no supported fix is available.
Validation and detection
- Inventory D-Link DIR-878A1 devices and record firmware versions.
- Identify whether FW101B04.bin or related vulnerable firmware is deployed.
- Confirm whether USB storage functionality is enabled or needed.
- Review physical access controls for router locations.
- Monitor for unexpected router crashes or reboots after USB device use.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-121: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2025-60674 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H0.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.8MediumVector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.dlink.com/en/security-bulletin/CVE reference, mitre
- https://www.dlink.com/enCVE reference, mitre
- https://github.com/yifan20020708/SGTaint-0-day/blob/main/DLink/DLink-DIR-878/CVE-2025-60674.mdCVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Stack-based Buffer Overflow
Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.