In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through…
Priority HIGH 75Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration files and updating firmware without authorization.
Why it matters now
EPSS 0.5606 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-825_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825:g1:*:*:*:*:*:*:* | g1 | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-825_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825:g1:*:*:*:*:*:*:* Versions g1 Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-46442
- 2026-10-03 Alias added: GHSA-8jv6-jjxw-75rx
References
More D-Link Japan K.K. Dir-825 Firmware vulnerabilities
- TI-2019-12619 Unauthenticated remote code execution occurs in D-Link products such as DIR-655C… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-06566 D-Link DIR-825 httpd switch_language.cgi sub_410DDC stack-based overflow CVSS 4.0CRITICAL 9.3
- TI-2026-06192 D-Link DIR-825 nmbd sserver.c NMBD_process buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-09764 D-Link DIR-825 apply.cgi sub_4106d4 buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-09210 D-Link DIR-825 httpd ping6_response.cg get_ping6_app_stat buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-05693 D-Link DIR-825 HTTP POST Request sub_4091AC stack-based overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2021-46442 · CVE Program
- CVE-2021-46442 · NVD
- FIRST EPSS
- GHSA-8jv6-jjxw-75rx · GitHub Advisory Database · CC BY 4.0
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