CRITICAL
An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors
Published Nov 4, 2021
9.1
CRITICALCVSS 3.1
EPSS 2.46%
Description
An issue in the component /cgi-bin/upload_firmware.cgi of D-Link DIR-823G REVA1 1.02B05 allows attackers to cause a denial of service (DoS) via unspecified vectors.
Affected products
No data.
AND
- 1.02b05
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
9.1 CRITICAL NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
8.5 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:P/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.46% 0.02460
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02460
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.46% (0.02460) | 83.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.31% (0.03306) | 86.91th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.55% (0.00549) | 65.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00234) | 62.31th | v3 (v2023.03.01) |
| Jul 20, 2024 | 0.23% (0.00234) | 61.85th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.21% (0.00205) | 58.56th | v3 (v2023.03.01) |
| Jan 27, 2024 | 0.17% (0.00172) | 54.50th | v3 (v2023.03.01) |
| Jun 26, 2023 | 0.14% (0.00144) | 49.19th | v3 (v2023.03.01) |
| Jun 12, 2023 | 0.12% (0.00122) | 45.44th | v3 (v2023.03.01) |
| Apr 17, 2023 | 0.10% (0.00098) | 39.44th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00089) | 36.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.74% (0.05736) | 77.22th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.49% (0.04486) | 75.02th | v1 |
| Jan 6, 2022 | 4.49% (0.04486) | 74.80th | v1 |
| Nov 5, 2021 | 1.04% (0.01036) | 63.15th | v1 |
Weaknesses (1)
References (2)
- https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md ExploitThird Party Advisory
- https://www.dlink.com/en/security-bulletin/ Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/sek1th/iot/blob/master/dir823g_upfw_dos.md | ExploitThird Party Advisory | |
| https://www.dlink.com/en/security-bulletin/ | Vendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 4, 2021
Updated Jul 9, 2026
Reserved Sep 14, 2020
Link CVE-2020-25366
CISA Vulnrichment
Updated n/a