An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20.
Priority CRITICAL 100Exploited in the wildCWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.
Why it matters now
Exploitation Active In CISA KEV since 2021-11-03CISA due date 2022-05-03
EPSS 0.55747 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
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:dlink:dir-825_r1_firmware:*:*:*:*:*:*:*:* | up to 3.0.1 | Vulnerable | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825:r1:*:*:*:*:*:*:* | r1 | Running on | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825\/a:d1a:*:*:*:*:*:*:* | d1a | Running on | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825\/ac:e:*:*:*:*:*:*:* | e | Running on | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825\/ac:e1a:*:*:*:*:*:*:* | e1a | Running on | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825\/acf:f1:*:*:*:*:*:*:* | f1 | Running on | D-Link Japan K.K. |
| cpe:2.3:h:dlink:dir-825\/gf:gf:*:*:*:*:*:*:* | gf | Running on | D-Link Japan K.K. |
- cpe:2.3:o:dlink:dir-825_r1_firmware:*:*:*:*:*:*:*:* Versions up to 3.0.1 Vulnerable ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825:r1:*:*:*:*:*:*:* Versions r1 Running on ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825\/a:d1a:*:*:*:*:*:*:* Versions d1a Running on ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825\/ac:e:*:*:*:*:*:*:* Versions e Running on ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825\/ac:e1a:*:*:*:*:*:*:* Versions e1a Running on ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825\/acf:f1:*:*:*:*:*:*:* Versions f1 Running on ·D-Link Japan K.K.
- cpe:2.3:h:dlink:dir-825\/gf:gf:*:*:*:*:*:*:* Versions gf Running on ·D-Link Japan K.K.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2021-11-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2020-29557
- 2026-10-03 Alias added: GHSA-x5v2-fv6f-w5rh
- 2026-10-16 EPSS moved to the 99th percentile and above
References
More D-Link vulnerabilities
- TI-2024-03070 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi command injection KEVCVSS 3.1CRITICAL 9.8
- TI-2024-03069 D-Link DNS-320L/DNS-325/DNS-327L/DNS-340L HTTP GET Request nas_sharing.cgi hard-coded credentials KEVCVSS 3.1CRITICAL 9.8
- TI-2024-00708 D-Link DIR-859 HTTP POST Request hedwig.cgi path traversal KEVCVSS 3.1CRITICAL 9.8
- TI-2023-10693 OS Command injection vulnerability in D-Link DIR820LA1_FW105B03 allows attackers to… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17249 D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09657 D-Link DIR-820L 1.05B03 was discovered to contain remote command execution (RCE)… KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-29557 · CVE Program
- CVE-2020-29557 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-x5v2-fv6f-w5rh · GitHub Advisory Database · CC BY 4.0
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